15255912000 has 448 divisors, whose sum is σ = 58427965440. Its totient is φ = 3435264000.

The previous prime is 15255911981. The next prime is 15255912011. The reversal of 15255912000 is 21955251.

It is a tau number, because it is divible by the number of its divisors (448).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11927361 + ... + 11928639.

Almost surely, 2^15255912000 is an apocalyptic number.

15255912000 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 15255912000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29213982720).

15255912000 is an abundant number, since it is smaller than the sum of its proper divisors (43172053440).

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

15255912000 is a wasteful number, since it uses less digits than its factorization.

15255912000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1387 (or 1367 counting only the distinct ones).

The product of its (nonzero) digits is 4500, while the sum is 30.

The spelling of 15255912000 in words is "fifteen billion, two hundred fifty-five million, nine hundred twelve thousand".