72514452 has 24 divisors (see below), whose sum is σ = 179153856. Its totient is φ = 22749568.

The previous prime is 72514447. The next prime is 72514499. The reversal of 72514452 is 25441527.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 177528 + ... + 177935.

It is an arithmetic number, because the mean of its divisors is an integer number (7464744).

Almost surely, 2^72514452 is an apocalyptic number.

It is an amenable number.

72514452 is an abundant number, since it is smaller than the sum of its proper divisors (106639404).

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

72514452 is a wasteful number, since it uses less digits than its factorization.

72514452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 355487 (or 355485 counting only the distinct ones).

The product of its digits is 11200, while the sum is 30.

The square root of 72514452 is about 8515.5417913366. The cubic root of 72514452 is about 417.0052504098.

Adding to 72514452 its reverse (25441527), we get a palindrome (97955979).

The spelling of 72514452 in words is "seventy-two million, five hundred fourteen thousand, four hundred fifty-two".