55651863 has 12 divisors (see below), whose sum is σ = 78825320. Its totient is φ = 34918272.

The previous prime is 55651853. The next prime is 55651879. The reversal of 55651863 is 36815655.

55651863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55651863 - 2⁵ = 55651831 is a prime.

It is a hoax number, since the sum of its digits (39) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55651823) 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 11 ways as a sum of consecutive naturals, for example, 31228 + ... + 32961.

Almost surely, 2^55651863 is an apocalyptic number.

55651863 is a deficient number, since it is larger than the sum of its proper divisors (23173457).

55651863 is a wasteful number, since it uses less digits than its factorization.

55651863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64226 (or 64209 counting only the distinct ones).

The product of its digits is 108000, while the sum is 39.

The square root of 55651863 is about 7460.0176273250. The cubic root of 55651863 is about 381.7917759052.

The spelling of 55651863 in words is "fifty-five million, six hundred fifty-one thousand, eight hundred sixty-three".