25477952613 has 16 divisors (see below), whose sum is σ = 34677245952. Its totient is φ = 16635150000.

The previous prime is 25477952603. The next prime is 25477952629. The reversal of 25477952613 is 31625977452.

It is a de Polignac number, because none of the positive numbers 2^k-25477952613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25477952603) 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, 363913 + ... + 428238.

It is an arithmetic number, because the mean of its divisors is an integer number (2167327872).

Almost surely, 2^25477952613 is an apocalyptic number.

It is an amenable number.

25477952613 is a deficient number, since it is larger than the sum of its proper divisors (9199293339).

25477952613 is a wasteful number, since it uses less digits than its factorization.

25477952613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 792376.

The product of its digits is 3175200, while the sum is 51.

The spelling of 25477952613 in words is "twenty-five billion, four hundred seventy-seven million, nine hundred fifty-two thousand, six hundred thirteen".