72570650 has 24 divisors (see below), whose sum is σ = 135212700. Its totient is φ = 28978560.

The previous prime is 72570629. The next prime is 72570661. The reversal of 72570650 is 5607527.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 5707321 + 66863329 = 2389^2 + 8177^2 .

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 11 ways as a sum of consecutive naturals, for example, 46076 + ... + 47624.

Almost surely, 2^72570650 is an apocalyptic number.

72570650 is a deficient number, since it is larger than the sum of its proper divisors (62642050).

72570650 is a wasteful number, since it uses less digits than its factorization.

72570650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2498 (or 2493 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The square root of 72570650 is about 8518.8408835944. The cubic root of 72570650 is about 417.1129476071.

The spelling of 72570650 in words is "seventy-two million, five hundred seventy thousand, six hundred fifty".