55637965089400 has 144 divisors (see below), whose sum is σ = 137278328881320. Its totient is φ = 20955185568000.

The previous prime is 55637965089391. The next prime is 55637965089439. The reversal of 55637965089400 is 498056973655.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 3199515 + ... + 11023285.

Almost surely, 2^{55637965089400} is an apocalyptic number.

55637965089400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 55637965089400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68639164440660).

55637965089400 is an abundant number, since it is smaller than the sum of its proper divisors (81640363791920).

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

55637965089400 is a wasteful number, since it uses less digits than its factorization.

55637965089400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7823886 (or 7823846 counting only the distinct ones).

The product of its (nonzero) digits is 244944000, while the sum is 67.

The spelling of 55637965089400 in words is "fifty-five trillion, six hundred thirty-seven billion, nine hundred sixty-five million, eighty-nine thousand, four hundred".