55656040 has 32 divisors (see below), whose sum is σ = 136611360. Its totient is φ = 20238400.

The previous prime is 55656023. The next prime is 55656043. The reversal of 55656040 is 4065655.

55656040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 55655993 and 55656011.

It is not an unprimeable number, because it can be changed into a prime (55656043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 62806 + ... + 63685.

It is an arithmetic number, because the mean of its divisors is an integer number (4269105).

Almost surely, 2^55656040 is an apocalyptic number.

It is an amenable number.

55656040 is an abundant number, since it is smaller than the sum of its proper divisors (80955320).

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

55656040 is a wasteful number, since it uses less digits than its factorization.

55656040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126513 (or 126509 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 31.

The square root of 55656040 is about 7460.2975811961. The cubic root of 55656040 is about 381.8013275732.

The spelling of 55656040 in words is "fifty-five million, six hundred fifty-six thousand, forty".