55257544 has 32 divisors (see below), whose sum is σ = 105336000. Its totient is φ = 27172800.

The previous prime is 55257493. The next prime is 55257551. The reversal of 55257544 is 44575255.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179839 + ... + 180145.

It is an arithmetic number, because the mean of its divisors is an integer number (3291750).

Almost surely, 2^55257544 is an apocalyptic number.

It is an amenable number.

55257544 is a deficient number, since it is larger than the sum of its proper divisors (50078456).

55257544 is a wasteful number, since it uses less digits than its factorization.

55257544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 613 (or 609 counting only the distinct ones).

The product of its digits is 140000, while the sum is 37.

The square root of 55257544 is about 7433.5418206936. The cubic root of 55257544 is about 380.8879144345.

The spelling of 55257544 in words is "fifty-five million, two hundred fifty-seven thousand, five hundred forty-four".