55672515 has 24 divisors (see below), whose sum is σ = 100075248. Its totient is φ = 29691360.

The previous prime is 55672483. The next prime is 55672537. The reversal of 55672515 is 51527655.

It is a happy number.

It is not a de Polignac number, because 55672515 - 2⁵ = 55672483 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55672515.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21696 + ... + 24125.

It is an arithmetic number, because the mean of its divisors is an integer number (4169802).

Almost surely, 2^55672515 is an apocalyptic number.

55672515 is a deficient number, since it is larger than the sum of its proper divisors (44402733).

55672515 is an equidigital number, since it uses as much as digits as its factorization.

55672515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45841 (or 45829 counting only the distinct ones).

The product of its digits is 52500, while the sum is 36.

The square root of 55672515 is about 7461.4016779691. The cubic root of 55672515 is about 381.8389967780.

The spelling of 55672515 in words is "fifty-five million, six hundred seventy-two thousand, five hundred fifteen".