12625012591 has 4 divisors (see below), whose sum is σ = 12626204184. Its totient is φ = 12623821000.

The previous prime is 12625012573. The next prime is 12625012619. The reversal of 12625012591 is 19521052621.

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

It is a cyclic number.

It is not a de Polignac number, because 12625012591 - 2¹⁷ = 12624881519 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 (12625012531) 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, 579760 + ... + 601141.

It is an arithmetic number, because the mean of its divisors is an integer number (3156551046).

Almost surely, 2^12625012591 is an apocalyptic number.

12625012591 is a deficient number, since it is larger than the sum of its proper divisors (1191593).

12625012591 is a wasteful number, since it uses less digits than its factorization.

12625012591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1191592.

The product of its (nonzero) digits is 10800, while the sum is 34.

The spelling of 12625012591 in words is "twelve billion, six hundred twenty-five million, twelve thousand, five hundred ninety-one".