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55201343401 = 82966587869
BaseRepresentation
bin110011011010010000…
…011010011110101001
312021111002001210102001
4303122100122132221
51401023020442101
641205324211001
73662640451141
oct633220323651
9167432053361
1055201343401
11214577a0366
12a846999a61
135289536209
142959443921
15168131d901
hexcda41a7a9

55201343401 has 4 divisors (see below), whose sum is σ = 55267932100. Its totient is φ = 55134754704.

The previous prime is 55201343377. The next prime is 55201343411. The reversal of 55201343401 is 10434310255.

55201343401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10434310255 = 52086862051.

It can be written as a sum of positive squares in 2 ways, for example, as 11142913600 + 44058429801 = 105560^2 + 209901^2 .

It is a cyclic number.

It is not a de Polignac number, because 55201343401 - 223 = 55192954793 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 55201343401.

It is not an unprimeable number, because it can be changed into a prime (55201343411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33293106 + ... + 33294763.

It is an arithmetic number, because the mean of its divisors is an integer number (13816983025).

Almost surely, 255201343401 is an apocalyptic number.

It is an amenable number.

55201343401 is a deficient number, since it is larger than the sum of its proper divisors (66588699).

55201343401 is an equidigital number, since it uses as much as digits as its factorization.

55201343401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66588698.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 55201343401 its reverse (10434310255), we get a palindrome (65635653656).

The spelling of 55201343401 in words is "fifty-five billion, two hundred one million, three hundred forty-three thousand, four hundred one".

Divisors: 1 829 66587869 55201343401