55374515 has 16 divisors (see below), whose sum is σ = 76986048. Its totient is φ = 37449216.

The previous prime is 55374503. The next prime is 55374521. The reversal of 55374515 is 51547355.

It is not a de Polignac number, because 55374515 - 2⁴ = 55374499 is a prime.

It is a super-2 number, since 2×55374515² = 6132673822970450, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

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, 8282 + ... + 13391.

It is an arithmetic number, because the mean of its divisors is an integer number (4811628).

Almost surely, 2^55374515 is an apocalyptic number.

55374515 is a deficient number, since it is larger than the sum of its proper divisors (21611533).

55374515 is a wasteful number, since it uses less digits than its factorization.

55374515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21758.

The product of its digits is 52500, while the sum is 35.

The square root of 55374515 is about 7441.4054452099. The cubic root of 55374515 is about 381.1564837372.

The spelling of 55374515 in words is "fifty-five million, three hundred seventy-four thousand, five hundred fifteen".