12563501351 has 4 divisors (see below), whose sum is σ = 12615632304. Its totient is φ = 12511370400.

The previous prime is 12563501311. The next prime is 12563501417. The reversal of 12563501351 is 15310536521.

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

It is not a de Polignac number, because 12563501351 - 2³⁰ = 11489759527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12563501311) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26065115 + ... + 26065596.

It is an arithmetic number, because the mean of its divisors is an integer number (3153908076).

Almost surely, 2^12563501351 is an apocalyptic number.

12563501351 is a deficient number, since it is larger than the sum of its proper divisors (52130953).

12563501351 is an equidigital number, since it uses as much as digits as its factorization.

12563501351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52130952.

The product of its (nonzero) digits is 13500, while the sum is 32.

The spelling of 12563501351 in words is "twelve billion, five hundred sixty-three million, five hundred one thousand, three hundred fifty-one".