55572736 has 18 divisors (see below), whose sum is σ = 110928902. Its totient is φ = 27786240.

The previous prime is 55572721. The next prime is 55572763. The reversal of 55572736 is 63727555.

55572736 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 53934336 + 1638400 = 7344^2 + 1280^2 .

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 as a sum of consecutive naturals, namely, 108285 + ... + 108796.

Almost surely, 2^55572736 is an apocalyptic number.

It is an amenable number.

55572736 is a deficient number, since it is larger than the sum of its proper divisors (55356166).

55572736 is an equidigital number, since it uses as much as digits as its factorization.

55572736 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217097 (or 217083 counting only the distinct ones).

The product of its digits is 220500, while the sum is 40.

The square root of 55572736 is about 7454.7123351609. The cubic root of 55572736 is about 381.6107435294.

The spelling of 55572736 in words is "fifty-five million, five hundred seventy-two thousand, seven hundred thirty-six".