72557485 has 96 divisors (see below), whose sum is σ = 126403200. Its totient is φ = 39191040.

The previous prime is 72557467. The next prime is 72557489. The reversal of 72557485 is 58475527.

It is not a de Polignac number, because 72557485 - 2⁷ = 72557357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72557489) 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 95 ways as a sum of consecutive naturals, for example, 665611 + ... + 665719.

It is an arithmetic number, because the mean of its divisors is an integer number (1316700).

Almost surely, 2^72557485 is an apocalyptic number.

It is an amenable number.

72557485 is a deficient number, since it is larger than the sum of its proper divisors (53845715).

72557485 is a wasteful number, since it uses less digits than its factorization.

72557485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 164 counting only the distinct ones).

The product of its digits is 392000, while the sum is 43.

The square root of 72557485 is about 8518.0681495278. The cubic root of 72557485 is about 417.0877233415.

The spelling of 72557485 in words is "seventy-two million, five hundred fifty-seven thousand, four hundred eighty-five".