12505251254 has 16 divisors (see below), whose sum is σ = 18798459792. Its totient is φ = 6239114208.

The previous prime is 12505251181. The next prime is 12505251257. The reversal of 12505251254 is 45215250521.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 12505251254.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505251257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2066357 + ... + 2072399.

It is an arithmetic number, because the mean of its divisors is an integer number (1174903737).

Almost surely, 2^12505251254 is an apocalyptic number.

12505251254 is a deficient number, since it is larger than the sum of its proper divisors (6293208538).

12505251254 is a wasteful number, since it uses less digits than its factorization.

12505251254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8111.

The product of its (nonzero) digits is 20000, while the sum is 32.

The spelling of 12505251254 in words is "twelve billion, five hundred five million, two hundred fifty-one thousand, two hundred fifty-four".