72512085 has 16 divisors (see below), whose sum is σ = 116694144. Its totient is φ = 38448192.

The previous prime is 72512071. The next prime is 72512101. The reversal of 72512085 is 58021527.

It is not a de Polignac number, because 72512085 - 2⁵ = 72512053 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, 11377 + ... + 16566.

It is an arithmetic number, because the mean of its divisors is an integer number (7293384).

Almost surely, 2^72512085 is an apocalyptic number.

It is an amenable number.

72512085 is a deficient number, since it is larger than the sum of its proper divisors (44182059).

72512085 is a wasteful number, since it uses less digits than its factorization.

72512085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28124.

The product of its (nonzero) digits is 5600, while the sum is 30.

The square root of 72512085 is about 8515.4028090279. The cubic root of 72512085 is about 417.0007130974. Note that the first 3 decimals are identical.

The spelling of 72512085 in words is "seventy-two million, five hundred twelve thousand, eighty-five".