54522515 has 4 divisors (see below), whose sum is σ = 65427024. Its totient is φ = 43618008.

The previous prime is 54522487. The next prime is 54522539. The reversal of 54522515 is 51522545.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 54522515 - 2²⁴ = 37745299 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5452247 + ... + 5452256.

It is an arithmetic number, because the mean of its divisors is an integer number (16356756).

Almost surely, 2^54522515 is an apocalyptic number.

54522515 is a deficient number, since it is larger than the sum of its proper divisors (10904509).

54522515 is a wasteful number, since it uses less digits than its factorization.

54522515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10904508.

The product of its digits is 10000, while the sum is 29.

The square root of 54522515 is about 7383.9362808735. The cubic root of 54522515 is about 379.1915290759.

The spelling of 54522515 in words is "fifty-four million, five hundred twenty-two thousand, five hundred fifteen".