55471500400 has 30 divisors (see below), whose sum is σ = 133270280672. Its totient is φ = 22188600000.

The previous prime is 55471500319. The next prime is 55471500419. The reversal of 55471500400 is 400517455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 69338976 + ... + 69339775.

Almost surely, 2^55471500400 is an apocalyptic number.

55471500400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55471500400 is an abundant number, since it is smaller than the sum of its proper divisors (77798780272).

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

55471500400 is a wasteful number, since it uses less digits than its factorization.

55471500400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138678769 (or 138678758 counting only the distinct ones).

The product of its (nonzero) digits is 14000, while the sum is 31.

The spelling of 55471500400 in words is "fifty-five billion, four hundred seventy-one million, five hundred thousand, four hundred".