72525215 has 16 divisors (see below), whose sum is σ = 99601920. Its totient is φ = 49662240.

The previous prime is 72525209. The next prime is 72525227. The reversal of 72525215 is 51252527.

It is not a de Polignac number, because 72525215 - 2⁴ = 72525199 is a prime.

It is a congruent 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, 45380 + ... + 46950.

It is an arithmetic number, because the mean of its divisors is an integer number (6225120).

Almost surely, 2^72525215 is an apocalyptic number.

72525215 is a deficient number, since it is larger than the sum of its proper divisors (27076705).

72525215 is a wasteful number, since it uses less digits than its factorization.

72525215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2902.

The product of its digits is 7000, while the sum is 29.

The square root of 72525215 is about 8516.1737300269. The cubic root of 72525215 is about 417.0258808053.

It can be divided in two parts, 725252 and 15, that multiplied together give a triangular number (10878780 = T₄₆₆₄).

The spelling of 72525215 in words is "seventy-two million, five hundred twenty-five thousand, two hundred fifteen".