12559259952 has 50 divisors (see below), whose sum is σ = 36350145788. Its totient is φ = 4186419552.

The previous prime is 12559259891. The next prime is 12559259953. The reversal of 12559259952 is 25995295521.

It is a happy number.

12559259952 is a `hidden beast` number, since 12 + 559 + 25 + 9 + 9 + 52 = 666.

It is a super-2 number, since 2×12559259952² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (12559259953) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 4844098 + ... + 4846689.

Almost surely, 2^12559259952 is an apocalyptic number.

12559259952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12559259952 is an abundant number, since it is smaller than the sum of its proper divisors (23790885836).

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

12559259952 is an equidigital number, since it uses as much as digits as its factorization.

12559259952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9690807 (or 9690792 counting only the distinct ones).

The product of its digits is 3645000, while the sum is 54.

The spelling of 12559259952 in words is "twelve billion, five hundred fifty-nine million, two hundred fifty-nine thousand, nine hundred fifty-two".