72566524 has 6 divisors (see below), whose sum is σ = 126991424. Its totient is φ = 36283260.

The previous prime is 72566467. The next prime is 72566537. The reversal of 72566524 is 42566527.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9070812 + ... + 9070819.

Almost surely, 2^72566524 is an apocalyptic number.

It is an amenable number.

72566524 is a deficient number, since it is larger than the sum of its proper divisors (54424900).

72566524 is a wasteful number, since it uses less digits than its factorization.

72566524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18141635 (or 18141633 counting only the distinct ones).

The product of its digits is 100800, while the sum is 37.

The square root of 72566524 is about 8518.5987110557. The cubic root of 72566524 is about 417.1050424800.

The spelling of 72566524 in words is "seventy-two million, five hundred sixty-six thousand, five hundred twenty-four".