7522021316 has 12 divisors (see below), whose sum is σ = 13239628332. Its totient is φ = 3739270368.

The previous prime is 7522021307. The next prime is 7522021337. The reversal of 7522021316 is 6131202257.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 4951936900 + 2570084416 = 70370^2 + 50696^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5434295 + ... + 5435678.

It is an arithmetic number, because the mean of its divisors is an integer number (1103302361).

Almost surely, 2^7522021316 is an apocalyptic number.

It is an amenable number.

7522021316 is a deficient number, since it is larger than the sum of its proper divisors (5717607016).

7522021316 is a wasteful number, since it uses less digits than its factorization.

7522021316 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10870150 (or 10870148 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 29.

The square root of 7522021316 is about 86729.5873159789. The cubic root of 7522021316 is about 1959.3477383260.

The spelling of 7522021316 in words is "seven billion, five hundred twenty-two million, twenty-one thousand, three hundred sixteen".