55712915 has 8 divisors (see below), whose sum is σ = 69161040. Its totient is φ = 43033312.

The previous prime is 55712903. The next prime is 55712941. The reversal of 55712915 is 51921755.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55712915 - 2⁸ = 55712659 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 191969 + ... + 192258.

It is an arithmetic number, because the mean of its divisors is an integer number (8645130).

Almost surely, 2^55712915 is an apocalyptic number.

55712915 is a deficient number, since it is larger than the sum of its proper divisors (13448125).

55712915 is a wasteful number, since it uses less digits than its factorization.

55712915 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384261.

The product of its digits is 15750, while the sum is 35.

The square root of 55712915 is about 7464.1084531242. The cubic root of 55712915 is about 381.9313377683.

The spelling of 55712915 in words is "fifty-five million, seven hundred twelve thousand, nine hundred fifteen".