55755815757 has 8 divisors (see below), whose sum is σ = 74517671520. Its totient is φ = 37082251920.

The previous prime is 55755815737. The next prime is 55755815767. The reversal of 55755815757 is 75751855755.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55755815757 - 2⁷ = 55755815629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55755815757.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55755815707) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22071507 + ... + 22074032.

It is an arithmetic number, because the mean of its divisors is an integer number (9314708940).

Almost surely, 2^55755815757 is an apocalyptic number.

It is an amenable number.

55755815757 is a deficient number, since it is larger than the sum of its proper divisors (18761855763).

55755815757 is a wasteful number, since it uses less digits than its factorization.

55755815757 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44145963.

The product of its digits is 42875000, while the sum is 60.

The spelling of 55755815757 in words is "fifty-five billion, seven hundred fifty-five million, eight hundred fifteen thousand, seven hundred fifty-seven".