55157417700 has 144 divisors (see below), whose sum is σ = 198967931904. Its totient is φ = 11461276800.

The previous prime is 55157417681. The next prime is 55157417701. The reversal of 55157417700 is 771475155.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (55157417701) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1170784 + ... + 1216983.

Almost surely, 2^55157417700 is an apocalyptic number.

55157417700 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55157417700 is an abundant number, since it is smaller than the sum of its proper divisors (143810514204).

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

55157417700 is a wasteful number, since it uses less digits than its factorization.

55157417700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387802 (or 2387795 counting only the distinct ones).

The product of its (nonzero) digits is 171500, while the sum is 42.

The spelling of 55157417700 in words is "fifty-five billion, one hundred fifty-seven million, four hundred seventeen thousand, seven hundred".