72600525 has 18 divisors (see below), whose sum is σ = 130036010. Its totient is φ = 38720160.

The previous prime is 72600511. The next prime is 72600529. The reversal of 72600525 is 52500627.

72600525 is a `hidden beast` number, since 7 + 2 + 600 + 52 + 5 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 927369 + 71673156 = 963^2 + 8466^2 .

It is not a de Polignac number, because 72600525 - 2⁴ = 72600509 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72600529) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 161110 + ... + 161559.

Almost surely, 2^72600525 is an apocalyptic number.

72600525 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

72600525 is a deficient number, since it is larger than the sum of its proper divisors (57435485).

72600525 is a wasteful number, since it uses less digits than its factorization.

72600525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 322685 (or 322677 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 27.

The square root of 72600525 is about 8520.5941694227. The cubic root of 72600525 is about 417.1701770781.

The spelling of 72600525 in words is "seventy-two million, six hundred thousand, five hundred twenty-five".