54372515 has 4 divisors (see below), whose sum is σ = 65247024. Its totient is φ = 43498008.

The previous prime is 54372473. The next prime is 54372523. The reversal of 54372515 is 51527345.

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 54372515 - 2⁸ = 54372259 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5437247 + ... + 5437256.

It is an arithmetic number, because the mean of its divisors is an integer number (16311756).

Almost surely, 2^54372515 is an apocalyptic number.

54372515 is a deficient number, since it is larger than the sum of its proper divisors (10874509).

54372515 is a wasteful number, since it uses less digits than its factorization.

54372515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10874508.

The product of its digits is 21000, while the sum is 32.

The square root of 54372515 is about 7373.7721011705. The cubic root of 54372515 is about 378.8434712139.

The spelling of 54372515 in words is "fifty-four million, three hundred seventy-two thousand, five hundred fifteen".