53556140 has 24 divisors (see below), whose sum is σ = 122692752. Its totient is φ = 19474880.

The previous prime is 53556091. The next prime is 53556157. The reversal of 53556140 is 4165535.

53556140 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 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, 121499 + ... + 121938.

It is an arithmetic number, because the mean of its divisors is an integer number (5112198).

Almost surely, 2^53556140 is an apocalyptic number.

It is an amenable number.

53556140 is an abundant number, since it is smaller than the sum of its proper divisors (69136612).

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

53556140 is a wasteful number, since it uses less digits than its factorization.

53556140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243457 (or 243455 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 29.

The square root of 53556140 is about 7318.2060643302. The cubic root of 53556140 is about 376.9378560614.

The spelling of 53556140 in words is "fifty-three million, five hundred fifty-six thousand, one hundred forty".