12525506551 has 16 divisors (see below), whose sum is σ = 13728212640. Its totient is φ = 11375078400.

The previous prime is 12525506527. The next prime is 12525506573. The reversal of 12525506551 is 15560552521.

It is a cyclic number.

It is not a de Polignac number, because 12525506551 - 2⁹ = 12525506039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12525506551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12525506351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 880840 + ... + 894946.

It is an arithmetic number, because the mean of its divisors is an integer number (858013290).

Almost surely, 2^12525506551 is an apocalyptic number.

12525506551 is a deficient number, since it is larger than the sum of its proper divisors (1202706089).

12525506551 is a wasteful number, since it uses less digits than its factorization.

12525506551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15954.

The product of its (nonzero) digits is 75000, while the sum is 37.

The spelling of 12525506551 in words is "twelve billion, five hundred twenty-five million, five hundred six thousand, five hundred fifty-one".