55451264 has 32 divisors (see below), whose sum is σ = 120515040. Its totient is φ = 25204480.

The previous prime is 55451237. The next prime is 55451273. The reversal of 55451264 is 46215455.

It is a tau number, because it is divible by the number of its divisors (32).

It is a Harshad number since it is a multiple of its sum of digits (32).

It is a self number, because there is not a number n which added to its sum of digits gives 55451264.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18284 + ... + 21099.

It is an arithmetic number, because the mean of its divisors is an integer number (3766095).

Almost surely, 2^55451264 is an apocalyptic number.

It is an amenable number.

55451264 is an abundant number, since it is smaller than the sum of its proper divisors (65063776).

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

55451264 is a wasteful number, since it uses less digits than its factorization.

55451264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39408 (or 39396 counting only the distinct ones).

The product of its digits is 24000, while the sum is 32.

The square root of 55451264 is about 7446.5605483337. The cubic root of 55451264 is about 381.3324965614.

The spelling of 55451264 in words is "fifty-five million, four hundred fifty-one thousand, two hundred sixty-four".