25427332313 has 4 divisors (see below), whose sum is σ = 25597985700. Its totient is φ = 25256678928.

The previous prime is 25427332297. The next prime is 25427332351. The reversal of 25427332313 is 31323372452.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 6884518729 + 18542813584 = 82973^2 + 136172^2 .

It is a cyclic number.

It is not a de Polignac number, because 25427332313 - 2⁴ = 25427332297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25427332013) 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, 85326470 + ... + 85326767.

It is an arithmetic number, because the mean of its divisors is an integer number (6399496425).

Almost surely, 2^25427332313 is an apocalyptic number.

It is an amenable number.

25427332313 is a deficient number, since it is larger than the sum of its proper divisors (170653387).

25427332313 is a wasteful number, since it uses less digits than its factorization.

25427332313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170653386.

The product of its digits is 90720, while the sum is 35.

The spelling of 25427332313 in words is "twenty-five billion, four hundred twenty-seven million, three hundred thirty-two thousand, three hundred thirteen".