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55244053 = 83665591
BaseRepresentation
bin1101001010111…
…1010100010101
310211221200121001
43102233110111
5103120302203
65252023301
71240365244
oct322572425
9124850531
1055244053
1129202747
1216601b31
13b5a32b7
1474a095b
154cb391d
hex34af515

55244053 has 4 divisors (see below), whose sum is σ = 55909728. Its totient is φ = 54578380.

The previous prime is 55244047. The next prime is 55244069. The reversal of 55244053 is 35044255.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 35044255 = 57008851.

It is a cyclic number.

It is not a de Polignac number, because 55244053 - 29 = 55243541 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 (55244023) 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, 332713 + ... + 332878.

It is an arithmetic number, because the mean of its divisors is an integer number (13977432).

Almost surely, 255244053 is an apocalyptic number.

It is an amenable number.

55244053 is a deficient number, since it is larger than the sum of its proper divisors (665675).

55244053 is an equidigital number, since it uses as much as digits as its factorization.

55244053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 665674.

The product of its (nonzero) digits is 12000, while the sum is 28.

The square root of 55244053 is about 7432.6343243832. The cubic root of 55244053 is about 380.8569142807.

The spelling of 55244053 in words is "fifty-five million, two hundred forty-four thousand, fifty-three".

Divisors: 1 83 665591 55244053