72525388 has 24 divisors (see below), whose sum is σ = 138227040. Its totient is φ = 33095040.

The previous prime is 72525379. The next prime is 72525389. The reversal of 72525388 is 88352527.

It is a self number, because there is not a number n which added to its sum of digits gives 72525388.

It is not an unprimeable number, because it can be changed into a prime (72525389) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3208 + ... + 12463.

It is an arithmetic number, because the mean of its divisors is an integer number (5759460).

Almost surely, 2^72525388 is an apocalyptic number.

It is an amenable number.

72525388 is a deficient number, since it is larger than the sum of its proper divisors (65701652).

72525388 is a wasteful number, since it uses less digits than its factorization.

72525388 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15777 (or 15775 counting only the distinct ones).

The product of its digits is 134400, while the sum is 40.

The square root of 72525388 is about 8516.1838871645. The cubic root of 72525388 is about 417.0262123930.

The spelling of 72525388 in words is "seventy-two million, five hundred twenty-five thousand, three hundred eighty-eight".