72550924 has 48 divisors (see below), whose sum is σ = 139345920. Its totient is φ = 32943680.

The previous prime is 72550913. The next prime is 72550927. The reversal of 72550924 is 42905527.

It is a self number, because there is not a number n which added to its sum of digits gives 72550924.

It is not an unprimeable number, because it can be changed into a prime (72550927) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 189237 + ... + 189619.

It is an arithmetic number, because the mean of its divisors is an integer number (2903040).

Almost surely, 2^72550924 is an apocalyptic number.

It is an amenable number.

72550924 is a deficient number, since it is larger than the sum of its proper divisors (66794996).

72550924 is a wasteful number, since it uses less digits than its factorization.

72550924 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510 (or 508 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 34.

The square root of 72550924 is about 8517.6830182861. The cubic root of 72550924 is about 417.0751512637.

The spelling of 72550924 in words is "seventy-two million, five hundred fifty thousand, nine hundred twenty-four".