15320523303252 has 72 divisors (see below), whose sum is σ = 38846594433920. Its totient is φ = 5091056530560.

The previous prime is 15320523303229. The next prime is 15320523303259. The reversal of 15320523303252 is 25230332502351.

15320523303252 is a `hidden beast` number, since 1 + 5 + 3 + 20 + 52 + 330 + 3 + 252 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15320523303259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 212533488 + ... + 212605560.

Almost surely, 2^{15320523303252} is an apocalyptic number.

15320523303252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15320523303252 is an abundant number, since it is smaller than the sum of its proper divisors (23526071130668).

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

15320523303252 is a wasteful number, since it uses less digits than its factorization.

15320523303252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90253 (or 90248 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 36.

The spelling of 15320523303252 in words is "fifteen trillion, three hundred twenty billion, five hundred twenty-three million, three hundred three thousand, two hundred fifty-two".