7212385524 has 24 divisors (see below), whose sum is σ = 17818835328. Its totient is φ = 2262709120.

The previous prime is 7212385493. The next prime is 7212385529. The reversal of 7212385524 is 4255832127.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7212385529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17677212 + ... + 17677619.

It is an arithmetic number, because the mean of its divisors is an integer number (742451472).

Almost surely, 2^7212385524 is an apocalyptic number.

It is an amenable number.

7212385524 is an abundant number, since it is smaller than the sum of its proper divisors (10606449804).

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

7212385524 is a wasteful number, since it uses less digits than its factorization.

7212385524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35354855 (or 35354853 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 7212385524 is about 84925.7647831328. The cubic root of 7212385524 is about 1932.0853656625.

The spelling of 7212385524 in words is "seven billion, two hundred twelve million, three hundred eighty-five thousand, five hundred twenty-four".