55664763 has 32 divisors (see below), whose sum is σ = 93829632. Its totient is φ = 28512000.

The previous prime is 55664759. The next prime is 55664767. The reversal of 55664763 is 36746655.

55664763 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (55664759) and next prime (55664767).

It is not a de Polignac number, because 55664763 - 2² = 55664759 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55664767) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 15213 + ... + 18513.

It is an arithmetic number, because the mean of its divisors is an integer number (2932176).

Almost surely, 2^55664763 is an apocalyptic number.

55664763 is a deficient number, since it is larger than the sum of its proper divisors (38164869).

55664763 is a wasteful number, since it uses less digits than its factorization.

55664763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3395.

The product of its digits is 453600, while the sum is 42.

The square root of 55664763 is about 7460.8821864442. The cubic root of 55664763 is about 381.8212731712.

The spelling of 55664763 in words is "fifty-five million, six hundred sixty-four thousand, seven hundred sixty-three".