55645264 has 10 divisors (see below), whose sum is σ = 107812730. Its totient is φ = 27822624.

The previous prime is 55645253. The next prime is 55645273. The reversal of 55645264 is 46254655.

It can be written as a sum of positive squares in only one way, i.e., 51724864 + 3920400 = 7192^2 + 1980^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1738899 + ... + 1738930.

It is an arithmetic number, because the mean of its divisors is an integer number (10781273).

Almost surely, 2^55645264 is an apocalyptic number.

It is an amenable number.

55645264 is a deficient number, since it is larger than the sum of its proper divisors (52167466).

55645264 is a wasteful number, since it uses less digits than its factorization.

55645264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3477837 (or 3477831 counting only the distinct ones).

The product of its digits is 144000, while the sum is 37.

The square root of 55645264 is about 7459.5753230328. The cubic root of 55645264 is about 381.7766848051.

It can be divided in two parts, 556452 and 64, that added together give a square (556516 = 746²).

The spelling of 55645264 in words is "fifty-five million, six hundred forty-five thousand, two hundred sixty-four".