15122552800 has 72 divisors (see below), whose sum is σ = 37131670296. Its totient is φ = 6014000640.

The previous prime is 15122552749. The next prime is 15122552833. The reversal of 15122552800 is 825522151.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83767 + ... + 193033.

It is an arithmetic number, because the mean of its divisors is an integer number (515717643).

Almost surely, 2^15122552800 is an apocalyptic number.

15122552800 is a gapful number since it is divisible by the number (10) 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 15122552800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18565835148).

15122552800 is an abundant number, since it is smaller than the sum of its proper divisors (22009117496).

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

15122552800 is a wasteful number, since it uses less digits than its factorization.

15122552800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109460 (or 109447 counting only the distinct ones).

The product of its (nonzero) digits is 8000, while the sum is 31.

The spelling of 15122552800 in words is "fifteen billion, one hundred twenty-two million, five hundred fifty-two thousand, eight hundred".