72532452 has 12 divisors (see below), whose sum is σ = 169242416. Its totient is φ = 24177480.

The previous prime is 72532433. The next prime is 72532457. The reversal of 72532452 is 25423527.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (72532457) 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, 3022174 + ... + 3022197.

Almost surely, 2^72532452 is an apocalyptic number.

It is an amenable number.

72532452 is an abundant number, since it is smaller than the sum of its proper divisors (96709964).

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

72532452 is a wasteful number, since it uses less digits than its factorization.

72532452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6044378 (or 6044376 counting only the distinct ones).

The product of its digits is 16800, while the sum is 30.

The square root of 72532452 is about 8516.5986168188. The cubic root of 72532452 is about 417.0397514566.

Adding to 72532452 its reverse (25423527), we get a palindrome (97955979).

The spelling of 72532452 in words is "seventy-two million, five hundred thirty-two thousand, four hundred fifty-two".