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55202255103 = 318400751701
BaseRepresentation
bin110011011010010011…
…111001000011111111
312021111010210010000210
4303122103321003333
51401023234130403
641205355523503
73662651266152
oct633223710377
9167433703023
1055202255103
1121458263336
12a847159593
135289795198
1429595ddc99
15168144db03
hexcda4f90ff

55202255103 has 4 divisors (see below), whose sum is σ = 73603006808. Its totient is φ = 36801503400.

The previous prime is 55202255077. The next prime is 55202255107. The reversal of 55202255103 is 30155220255.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 55202255103 - 28 = 55202254847 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55202255107) 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, 9200375848 + ... + 9200375853.

It is an arithmetic number, because the mean of its divisors is an integer number (18400751702).

Almost surely, 255202255103 is an apocalyptic number.

55202255103 is a deficient number, since it is larger than the sum of its proper divisors (18400751705).

55202255103 is a wasteful number, since it uses less digits than its factorization.

55202255103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18400751704.

The product of its (nonzero) digits is 15000, while the sum is 30.

Adding to 55202255103 its reverse (30155220255), we get a palindrome (85357475358).

The spelling of 55202255103 in words is "fifty-five billion, two hundred two million, two hundred fifty-five thousand, one hundred three".

Divisors: 1 3 18400751701 55202255103