15256023012 has 36 divisors (see below), whose sum is σ = 39139421776. Its totient is φ = 5009439600.

The previous prime is 15256023007. The next prime is 15256023031. The reversal of 15256023012 is 21032065251.

It is a happy number.

15256023012 is a `hidden beast` number, since 1 + 5 + 25 + 602 + 30 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3160114 + ... + 3164937.

Almost surely, 2^15256023012 is an apocalyptic number.

15256023012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

15256023012 is an abundant number, since it is smaller than the sum of its proper divisors (23883398764).

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

15256023012 is a wasteful number, since it uses less digits than its factorization.

15256023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6325128 (or 6325123 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 15256023012 its reverse (21032065251), we get a palindrome (36288088263).

The spelling of 15256023012 in words is "fifteen billion, two hundred fifty-six million, twenty-three thousand, twelve".