55012665 has 16 divisors (see below), whose sum is σ = 91847808. Its totient is φ = 28064256.

The previous prime is 55012637. The next prime is 55012703. The reversal of 55012665 is 56621055.

It is not a de Polignac number, because 55012665 - 2⁷ = 55012537 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 79384 + ... + 80073.

It is an arithmetic number, because the mean of its divisors is an integer number (5740488).

Almost surely, 2^55012665 is an apocalyptic number.

It is an amenable number.

55012665 is a deficient number, since it is larger than the sum of its proper divisors (36835143).

55012665 is a wasteful number, since it uses less digits than its factorization.

55012665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159488.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 55012665 is about 7417.0523120712. The cubic root of 55012665 is about 380.3244343770.

The spelling of 55012665 in words is "fifty-five million, twelve thousand, six hundred sixty-five".