15802236252 has 72 divisors (see below), whose sum is σ = 43595016192. Its totient is φ = 4786452000.

The previous prime is 15802236251. The next prime is 15802236269. The reversal of 15802236252 is 25263220851.

It is a happy number.

15802236252 is a `hidden beast` number, since 1 + 5 + 8 + 0 + 2 + 23 + 625 + 2 = 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 (15802236251) 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, 1056627 + ... + 1071477.

It is an arithmetic number, because the mean of its divisors is an integer number (605486336).

Almost surely, 2^15802236252 is an apocalyptic number.

15802236252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15802236252 is an abundant number, since it is smaller than the sum of its proper divisors (27792779940).

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

15802236252 is a wasteful number, since it uses less digits than its factorization.

15802236252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17559 (or 17554 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 36.

The spelling of 15802236252 in words is "fifteen billion, eight hundred two million, two hundred thirty-six thousand, two hundred fifty-two".