56636437200 has 120 divisors (see below), whose sum is σ = 207343330368. Its totient is φ = 12945469440.

The previous prime is 56636437189. The next prime is 56636437201. The reversal of 56636437200 is 273463665.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56636437201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3362817 + ... + 3379616.

Almost surely, 2^56636437200 is an apocalyptic number.

56636437200 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

56636437200 is an abundant number, since it is smaller than the sum of its proper divisors (150706893168).

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

56636437200 is a wasteful number, since it uses less digits than its factorization.

56636437200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6742461 (or 6742450 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 42.

The spelling of 56636437200 in words is "fifty-six billion, six hundred thirty-six million, four hundred thirty-seven thousand, two hundred".