55858012400 has 60 divisors (see below), whose sum is σ = 135501876432. Its totient is φ = 22126264320.

The previous prime is 55858012321. The next prime is 55858012421. The reversal of 55858012400 is 421085855.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 636689 + ... + 719088.

Almost surely, 2^55858012400 is an apocalyptic number.

55858012400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55858012400 is an abundant number, since it is smaller than the sum of its proper divisors (79643864032).

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

55858012400 is a wasteful number, since it uses less digits than its factorization.

55858012400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1355898 (or 1355887 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 38.

The spelling of 55858012400 in words is "fifty-five billion, eight hundred fifty-eight million, twelve thousand, four hundred".