15422001252 has 96 divisors (see below), whose sum is σ = 42636754944. Its totient is φ = 4246944000.

The previous prime is 15422001227. The next prime is 15422001253. The reversal of 15422001252 is 25210022451.

It is not an unprimeable number, because it can be changed into a prime (15422001253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 258877 + ... + 312827.

It is an arithmetic number, because the mean of its divisors is an integer number (444132864).

Almost surely, 2^15422001252 is an apocalyptic number.

15422001252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 15422001252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21318377472).

15422001252 is an abundant number, since it is smaller than the sum of its proper divisors (27214753692).

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

15422001252 is a wasteful number, since it uses less digits than its factorization.

15422001252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54089 (or 54087 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The spelling of 15422001252 in words is "fifteen billion, four hundred twenty-two million, one thousand, two hundred fifty-two".