72542056 has 16 divisors (see below), whose sum is σ = 138911040. Its totient is φ = 35499120.

The previous prime is 72542051. The next prime is 72542101. The reversal of 72542056 is 65024527.

It is not an unprimeable number, because it can be changed into a prime (72542051) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 96090 + ... + 96841.

It is an arithmetic number, because the mean of its divisors is an integer number (8681940).

Almost surely, 2^72542056 is an apocalyptic number.

It is an amenable number.

72542056 is a deficient number, since it is larger than the sum of its proper divisors (66368984).

72542056 is a wasteful number, since it uses less digits than its factorization.

72542056 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 192984 (or 192980 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 31.

The square root of 72542056 is about 8517.1624382772. The cubic root of 72542056 is about 417.0581573467.

The spelling of 72542056 in words is "seventy-two million, five hundred forty-two thousand, fifty-six".