72452512 has 48 divisors (see below), whose sum is σ = 159842592. Its totient is φ = 32037120.

The previous prime is 72452503. The next prime is 72452519. The reversal of 72452512 is 21525427.

It is a super-2 number, since 2×72452512² = 10498732990220288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (72452519) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10243 + ... + 15805.

It is an arithmetic number, because the mean of its divisors is an integer number (3330054).

Almost surely, 2^72452512 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 72452512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79921296).

72452512 is an abundant number, since it is smaller than the sum of its proper divisors (87390080).

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

72452512 is a wasteful number, since it uses less digits than its factorization.

72452512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5621 (or 5613 counting only the distinct ones).

The product of its digits is 5600, while the sum is 28.

The square root of 72452512 is about 8511.9041347985. The cubic root of 72452512 is about 416.8864848293.

Adding to 72452512 its reverse (21525427), we get a palindrome (93977939).

The spelling of 72452512 in words is "seventy-two million, four hundred fifty-two thousand, five hundred twelve".