72508532 has 12 divisors (see below), whose sum is σ = 126986496. Its totient is φ = 36226680.

The previous prime is 72508531. The next prime is 72508547. The reversal of 72508532 is 23580527.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72508531) 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 3 ways as a sum of consecutive naturals, for example, 278 + ... + 12045.

It is an arithmetic number, because the mean of its divisors is an integer number (10582208).

Almost surely, 2^72508532 is an apocalyptic number.

It is an amenable number.

72508532 is a deficient number, since it is larger than the sum of its proper divisors (54477964).

72508532 is a wasteful number, since it uses less digits than its factorization.

72508532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13798 (or 13796 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 72508532 is about 8515.1941845151. The cubic root of 72508532 is about 416.9939021511.

The spelling of 72508532 in words is "seventy-two million, five hundred eight thousand, five hundred thirty-two".