55755707957 has 2 divisors, whose sum is σ = 55755707958. Its totient is φ = 55755707956.

The previous prime is 55755707923. The next prime is 55755707989. The reversal of 55755707957 is 75970755755.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47982464401 + 7773243556 = 219049^2 + 88166^2 .

It is a cyclic number.

It is not a de Polignac number, because 55755707957 - 2⁸ = 55755707701 is a prime.

It is a super-2 number, since 2×55755707957² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55755707957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55755707257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27877853978 + 27877853979.

It is an arithmetic number, because the mean of its divisors is an integer number (27877853979).

Almost surely, 2^55755707957 is an apocalyptic number.

It is an amenable number.

55755707957 is a deficient number, since it is larger than the sum of its proper divisors (1).

55755707957 is an equidigital number, since it uses as much as digits as its factorization.

55755707957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67528125, while the sum is 62.

The spelling of 55755707957 in words is "fifty-five billion, seven hundred fifty-five million, seven hundred seven thousand, nine hundred fifty-seven".