72576225 has 36 divisors (see below), whose sum is σ = 132777216. Its totient is φ = 37878240.

The previous prime is 72576211. The next prime is 72576253. The reversal of 72576225 is 52267527.

72576225 is a `hidden beast` number, since 7 + 25 + 7 + 622 + 5 = 666.

It is not a de Polignac number, because 72576225 - 2¹⁶ = 72510689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 72576225.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 7144 + ... + 14006.

It is an arithmetic number, because the mean of its divisors is an integer number (3688256).

Almost surely, 2^72576225 is an apocalyptic number.

72576225 is a gapful number since it is divisible by the number (75) formed by its first and last digit.

It is an amenable number.

72576225 is a deficient number, since it is larger than the sum of its proper divisors (60200991).

72576225 is a wasteful number, since it uses less digits than its factorization.

72576225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6926 (or 6918 counting only the distinct ones).

The product of its digits is 58800, while the sum is 36.

The square root of 72576225 is about 8519.1680931884. The cubic root of 72576225 is about 417.1236284408.

The spelling of 72576225 in words is "seventy-two million, five hundred seventy-six thousand, two hundred twenty-five".