55744981810 has 72 divisors (see below), whose sum is σ = 119964551364. Its totient is φ = 18595785600.

The previous prime is 55744981807. The next prime is 55744981841. The reversal of 55744981810 is 1818944755.

It can be written as a sum of positive squares in 6 ways, for example, as 48586298929 + 7158682881 = 220423^2 + 84609^2 .

It is a super-2 number, since 2×55744981810² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 629260 + ... + 712360.

Almost surely, 2^55744981810 is an apocalyptic number.

55744981810 is an abundant number, since it is smaller than the sum of its proper divisors (64219569554).

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

55744981810 is a wasteful number, since it uses less digits than its factorization.

55744981810 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83196 (or 83152 counting only the distinct ones).

The product of its (nonzero) digits is 1612800, while the sum is 52.

The spelling of 55744981810 in words is "fifty-five billion, seven hundred forty-four million, nine hundred eighty-one thousand, eight hundred ten".