72545264 has 20 divisors (see below), whose sum is σ = 153334680. Its totient is φ = 32975040.

The previous prime is 72545261. The next prime is 72545281. The reversal of 72545264 is 46254527.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72545261) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 205919 + ... + 206270.

It is an arithmetic number, because the mean of its divisors is an integer number (7666734).

Almost surely, 2^72545264 is an apocalyptic number.

It is an amenable number.

72545264 is an abundant number, since it is smaller than the sum of its proper divisors (80789416).

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

72545264 is a wasteful number, since it uses less digits than its factorization.

72545264 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 412208 (or 412202 counting only the distinct ones).

The product of its digits is 67200, while the sum is 35.

The square root of 72545264 is about 8517.3507618273. The cubic root of 72545264 is about 417.0643050580.

The spelling of 72545264 in words is "seventy-two million, five hundred forty-five thousand, two hundred sixty-four".