72510212 has 24 divisors (see below), whose sum is σ = 131991552. Its totient is φ = 34826400.

The previous prime is 72510173. The next prime is 72510257. The reversal of 72510212 is 21201527.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7037 + ... + 13947.

It is an arithmetic number, because the mean of its divisors is an integer number (5499648).

Almost surely, 2^72510212 is an apocalyptic number.

It is an amenable number.

72510212 is a deficient number, since it is larger than the sum of its proper divisors (59481340).

72510212 is a wasteful number, since it uses less digits than its factorization.

72510212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7019 (or 7017 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 20.

The square root of 72510212 is about 8515.2928311362. The cubic root of 72510212 is about 416.9971226657.

Adding to 72510212 its reverse (21201527), we get a palindrome (93711739).

The spelling of 72510212 in words is "seventy-two million, five hundred ten thousand, two hundred twelve".