9715215252 has 12 divisors (see below), whose sum is σ = 22668835616. Its totient is φ = 3238405080.

The previous prime is 9715215247. The next prime is 9715215259. The reversal of 9715215252 is 2525125179.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (12).

It is a hoax number, since the sum of its digits (39) 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 9715215252.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9715215259) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404800624 + ... + 404800647.

Almost surely, 2^9715215252 is an apocalyptic number.

It is an amenable number.

9715215252 is an abundant number, since it is smaller than the sum of its proper divisors (12953620364).

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

9715215252 is a wasteful number, since it uses less digits than its factorization.

9715215252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809601278 (or 809601276 counting only the distinct ones).

The product of its digits is 63000, while the sum is 39.

The square root of 9715215252 is about 98565.7914897456. The cubic root of 9715215252 is about 2133.7857433640.

The spelling of 9715215252 in words is "nine billion, seven hundred fifteen million, two hundred fifteen thousand, two hundred fifty-two".