55756964551 has 4 divisors (see below), whose sum is σ = 55979104104. Its totient is φ = 55534825000.

The previous prime is 55756964537. The next prime is 55756964597. The reversal of 55756964551 is 15546965755.

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

It is a cyclic number.

It is not a de Polignac number, because 55756964551 - 2³⁵ = 21397226183 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 (55756964651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111069400 + ... + 111069901.

It is an arithmetic number, because the mean of its divisors is an integer number (13994776026).

Almost surely, 2^55756964551 is an apocalyptic number.

55756964551 is a deficient number, since it is larger than the sum of its proper divisors (222139553).

55756964551 is a wasteful number, since it uses less digits than its factorization.

55756964551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222139552.

The product of its digits is 28350000, while the sum is 58.

The spelling of 55756964551 in words is "fifty-five billion, seven hundred fifty-six million, nine hundred sixty-four thousand, five hundred fifty-one".