55872664 has 32 divisors (see below), whose sum is σ = 111081600. Its totient is φ = 26300160.

The previous prime is 55872631. The next prime is 55872697. The reversal of 55872664 is 46627855.

It is an interprime number because it is at equal distance from previous prime (55872631) and next prime (55872697).

It is a super-3 number, since 3×55872664³ (a number of 24 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 55872664.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 6132 + ... + 12220.

It is an arithmetic number, because the mean of its divisors is an integer number (3471300).

Almost surely, 2^55872664 is an apocalyptic number.

It is an amenable number.

55872664 is a deficient number, since it is larger than the sum of its proper divisors (55208936).

55872664 is a wasteful number, since it uses less digits than its factorization.

55872664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6163 (or 6159 counting only the distinct ones).

The product of its digits is 403200, while the sum is 43.

The square root of 55872664 is about 7474.8019371753. The cubic root of 55872664 is about 382.2960343348.

The spelling of 55872664 in words is "fifty-five million, eight hundred seventy-two thousand, six hundred sixty-four".