12534552451 has 4 divisors (see below), whose sum is σ = 12603804304. Its totient is φ = 12465300600.

The previous prime is 12534552413. The next prime is 12534552467. The reversal of 12534552451 is 15425543521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15425543521 = 17 ⋅907384913.

It is a cyclic number.

It is not a de Polignac number, because 12534552451 - 2⁷ = 12534552323 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12534552451.

It is not an unprimeable number, because it can be changed into a prime (12534582451) 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, 34625655 + ... + 34626016.

It is an arithmetic number, because the mean of its divisors is an integer number (3150951076).

Almost surely, 2^12534552451 is an apocalyptic number.

12534552451 is a deficient number, since it is larger than the sum of its proper divisors (69251853).

12534552451 is an equidigital number, since it uses as much as digits as its factorization.

12534552451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69251852.

The product of its digits is 120000, while the sum is 37.

The spelling of 12534552451 in words is "twelve billion, five hundred thirty-four million, five hundred fifty-two thousand, four hundred fifty-one".