55111315 has 16 divisors (see below), whose sum is σ = 77625792. Its totient is φ = 36768384.

The previous prime is 55111291. The next prime is 55111321. The reversal of 55111315 is 51311155.

It is a cyclic number.

It is not a de Polignac number, because 55111315 - 2⁷ = 55111187 is a prime.

It is a Duffinian number.

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, 19984 + ... + 22573.

It is an arithmetic number, because the mean of its divisors is an integer number (4851612).

Almost surely, 2^55111315 is an apocalyptic number.

55111315 is a deficient number, since it is larger than the sum of its proper divisors (22514477).

55111315 is a wasteful number, since it uses less digits than its factorization.

55111315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42606.

The product of its digits is 375, while the sum is 22.

The square root of 55111315 is about 7423.6995494160. The cubic root of 55111315 is about 380.5516341870.

The spelling of 55111315 in words is "fifty-five million, one hundred eleven thousand, three hundred fifteen".