72562536 has 24 divisors (see below), whose sum is σ = 196523730. Its totient is φ = 24187488.

The previous prime is 72562519. The next prime is 72562561. The reversal of 72562536 is 63526527.

It is a happy number.

72562536 is a `hidden beast` number, since 7 + 25 + 625 + 3 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56160036 + 16402500 = 7494^2 + 4050^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 72562536.

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 5 ways as a sum of consecutive naturals, for example, 503835 + ... + 503978.

Almost surely, 2^72562536 is an apocalyptic number.

It is an amenable number.

72562536 is an abundant number, since it is smaller than the sum of its proper divisors (123961194).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72562536 is a wasteful number, since it uses less digits than its factorization.

72562536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1007825 (or 1007818 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 72562536 is about 8518.3646317823. The cubic root of 72562536 is about 417.0974014664.

The spelling of 72562536 in words is "seventy-two million, five hundred sixty-two thousand, five hundred thirty-six".