55601177880 has 32 divisors (see below), whose sum is σ = 166803534000. Its totient is φ = 14826980736.

The previous prime is 55601177867. The next prime is 55601177881. The reversal of 55601177880 is 8877110655.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55601177881) 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, 231671455 + ... + 231671694.

Almost surely, 2^55601177880 is an apocalyptic number.

It is an amenable number.

55601177880 is an abundant number, since it is smaller than the sum of its proper divisors (111202356120).

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

55601177880 is a wasteful number, since it uses less digits than its factorization.

55601177880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463343163 (or 463343159 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 48.

The spelling of 55601177880 in words is "fifty-five billion, six hundred one million, one hundred seventy-seven thousand, eight hundred eighty".