55638477432600 has 192 divisors, whose sum is σ = 185784134768640. Its totient is φ = 13734042009600.

The previous prime is 55638477432583. The next prime is 55638477432613. The reversal of 55638477432600 is 623477483655.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 64600809 + ... + 65456408.

It is an arithmetic number, because the mean of its divisors is an integer number (967625701920).

Almost surely, 2^{55638477432600} is an apocalyptic number.

55638477432600 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55638477432600 is an abundant number, since it is smaller than the sum of its proper divisors (130145657336040).

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

55638477432600 is a wasteful number, since it uses less digits than its factorization.

55638477432600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130057290 (or 130057281 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 60.

The spelling of 55638477432600 in words is "fifty-five trillion, six hundred thirty-eight billion, four hundred seventy-seven million, four hundred thirty-two thousand, six hundred".