7520535506 has 12 divisors (see below), whose sum is σ = 12399561006. Its totient is φ = 3418425120.

The previous prime is 7520535499. The next prime is 7520535527. The reversal of 7520535506 is 6055350257.

It can be written as a sum of positive squares in only one way, i.e., 6924736225 + 595799281 = 83215^2 + 24409^2 .

It is a super-3 number, since 3×7520535506³ (a number of 31 digits) contains 333 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 7520535506.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15538055 + ... + 15538538.

Almost surely, 2^7520535506 is an apocalyptic number.

7520535506 is a deficient number, since it is larger than the sum of its proper divisors (4879025500).

7520535506 is a wasteful number, since it uses less digits than its factorization.

7520535506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31076617 (or 31076606 counting only the distinct ones).

The product of its (nonzero) digits is 157500, while the sum is 38.

The square root of 7520535506 is about 86721.0211309807. The cubic root of 7520535506 is about 1959.2187211357.

The spelling of 7520535506 in words is "seven billion, five hundred twenty million, five hundred thirty-five thousand, five hundred six".