12505514254 has 4 divisors (see below), whose sum is σ = 18758271384. Its totient is φ = 6252757126.

The previous prime is 12505514243. The next prime is 12505514257. The reversal of 12505514254 is 45241550521.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12505514257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3126378562 + ... + 3126378565.

It is an arithmetic number, because the mean of its divisors is an integer number (4689567846).

Almost surely, 2^12505514254 is an apocalyptic number.

12505514254 is a deficient number, since it is larger than the sum of its proper divisors (6252757130).

12505514254 is an equidigital number, since it uses as much as digits as its factorization.

12505514254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6252757129.

The product of its (nonzero) digits is 40000, while the sum is 34.

The spelling of 12505514254 in words is "twelve billion, five hundred five million, five hundred fourteen thousand, two hundred fifty-four".