55745864 has 16 divisors (see below), whose sum is σ = 104722800. Its totient is φ = 27819792.

The previous prime is 55745861. The next prime is 55745869. The reversal of 55745864 is 46854755.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (55745861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1994 + ... + 10745.

It is an arithmetic number, because the mean of its divisors is an integer number (6545175).

Almost surely, 2^55745864 is an apocalyptic number.

It is an amenable number.

55745864 is a deficient number, since it is larger than the sum of its proper divisors (48976936).

55745864 is a wasteful number, since it uses less digits than its factorization.

55745864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13292 (or 13288 counting only the distinct ones).

The product of its digits is 672000, while the sum is 44.

The square root of 55745864 is about 7466.3152893512. The cubic root of 55745864 is about 382.0066152012.

The spelling of 55745864 in words is "fifty-five million, seven hundred forty-five thousand, eight hundred sixty-four".