72515 has 4 divisors (see below), whose sum is σ = 87024. Its totient is φ = 58008.

The previous prime is 72503. The next prime is 72533. The reversal of 72515 is 51527.

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 72515 - 2¹⁴ = 56131 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, 7247 + ... + 7256.

It is an arithmetic number, because the mean of its divisors is an integer number (21756).

2⁷²⁵¹⁵ is an apocalyptic number.

72515 is a deficient number, since it is larger than the sum of its proper divisors (14509).

72515 is a wasteful number, since it uses less digits than its factorization.

72515 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14508.

The product of its digits is 350, while the sum is 20.

The square root of 72515 is about 269.2860932169. The cubic root of 72515 is about 41.7006300859.

The spelling of 72515 in words is "seventy-two thousand, five hundred fifteen".