55647885 has 16 divisors (see below), whose sum is σ = 94274496. Its totient is φ = 27932928.

The previous prime is 55647877. The next prime is 55647899. The reversal of 55647885 is 58874655.

55647885 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 55647885 - 2³ = 55647877 is a prime.

It is a plaindrome in base 12.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 108859 + ... + 109368.

It is an arithmetic number, because the mean of its divisors is an integer number (5892156).

Almost surely, 2^55647885 is an apocalyptic number.

It is an amenable number.

55647885 is a deficient number, since it is larger than the sum of its proper divisors (38626611).

55647885 is a wasteful number, since it uses less digits than its factorization.

55647885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218252.

The product of its digits is 1344000, while the sum is 48.

The square root of 55647885 is about 7459.7510012064. The cubic root of 55647885 is about 381.7826788521.

The spelling of 55647885 in words is "fifty-five million, six hundred forty-seven thousand, eight hundred eighty-five".