15255312400 has 30 divisors (see below), whose sum is σ = 36650889002. Its totient is φ = 6102124800.

The previous prime is 15255312383. The next prime is 15255312421. The reversal of 15255312400 is 421355251.

It can be written as a sum of positive squares in 3 ways, for example, as 2487216384 + 12768096016 = 49872^2 + 112996^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 19068741 + ... + 19069540.

Almost surely, 2^15255312400 is an apocalyptic number.

15255312400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

15255312400 is an abundant number, since it is smaller than the sum of its proper divisors (21395576602).

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

15255312400 is a wasteful number, since it uses less digits than its factorization.

15255312400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38138299 (or 38138288 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 28.

Adding to 15255312400 its reverse (421355251), we get a palindrome (15676667651).

The spelling of 15255312400 in words is "fifteen billion, two hundred fifty-five million, three hundred twelve thousand, four hundred".