55558757760 has 128 divisors (see below), whose sum is σ = 193193026560. Its totient is φ = 13468784640.

The previous prime is 55558757759. The next prime is 55558757767. The reversal of 55558757760 is 6775785555.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 55558757694 and 55558757703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55558757767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1294192 + ... + 1336431.

It is an arithmetic number, because the mean of its divisors is an integer number (1509320520).

Almost surely, 2^55558757760 is an apocalyptic number.

It is an amenable number.

55558757760 is an abundant number, since it is smaller than the sum of its proper divisors (137634268800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55558757760 is a wasteful number, since it uses less digits than its factorization.

55558757760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2630656 (or 2630644 counting only the distinct ones).

The product of its (nonzero) digits is 51450000, while the sum is 60.

It can be divided in two parts, 55558 and 757760, that added together give a palindrome (813318).

The spelling of 55558757760 in words is "fifty-five billion, five hundred fifty-eight million, seven hundred fifty-seven thousand, seven hundred sixty".