55643524400 has 60 divisors (see below), whose sum is σ = 137995971264. Its totient is φ = 21539424000.

The previous prime is 55643524399. The next prime is 55643524411. The reversal of 55643524400 is 442534655.

55643524400 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 2231291 + ... + 2256090.

Almost surely, 2^55643524400 is an apocalyptic number.

55643524400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

55643524400 is an abundant number, since it is smaller than the sum of its proper divisors (82352446864).

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

55643524400 is a wasteful number, since it uses less digits than its factorization.

55643524400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4487430 (or 4487419 counting only the distinct ones).

The product of its (nonzero) digits is 288000, while the sum is 38.

The spelling of 55643524400 in words is "fifty-five billion, six hundred forty-three million, five hundred twenty-four thousand, four hundred".