56553384 has 16 divisors (see below), whose sum is σ = 141383520. Its totient is φ = 18851120.

The previous prime is 56553383. The next prime is 56553421. The reversal of 56553384 is 48335565.

It is not an unprimeable number, because it can be changed into a prime (56553383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1178172 + ... + 1178219.

It is an arithmetic number, because the mean of its divisors is an integer number (8836470).

Almost surely, 2^56553384 is an apocalyptic number.

It is an amenable number.

56553384 is an abundant number, since it is smaller than the sum of its proper divisors (84830136).

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

56553384 is a wasteful number, since it uses less digits than its factorization.

56553384 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2356400 (or 2356396 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The square root of 56553384 is about 7520.1984016381. The cubic root of 56553384 is about 383.8423289320.

The spelling of 56553384 in words is "fifty-six million, five hundred fifty-three thousand, three hundred eighty-four".