15255544000 has 112 divisors (see below), whose sum is σ = 38802198240. Its totient is φ = 5937177600.

The previous prime is 15255543991. The next prime is 15255544001. The reversal of 15255544000 is 44555251.

It is not an unprimeable number, because it can be changed into a prime (15255544001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270231 + ... + 321769.

Almost surely, 2^15255544000 is an apocalyptic number.

15255544000 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 15255544000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19401099120).

15255544000 is an abundant number, since it is smaller than the sum of its proper divisors (23546654240).

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

15255544000 is an equidigital number, since it uses as much as digits as its factorization.

15255544000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51603 (or 51583 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 31.

The spelling of 15255544000 in words is "fifteen billion, two hundred fifty-five million, five hundred forty-four thousand".