25613479 has 8 divisors (see below), whose sum is σ = 26314848. Its totient is φ = 24915840.

The previous prime is 25613477. The next prime is 25613503. The reversal of 25613479 is 97431652.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25613479 - 2¹ = 25613477 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 (25613477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18054 + ... + 19420.

It is an arithmetic number, because the mean of its divisors is an integer number (3289356).

Almost surely, 2^25613479 is an apocalyptic number.

25613479 is a deficient number, since it is larger than the sum of its proper divisors (701369).

25613479 is a wasteful number, since it uses less digits than its factorization.

25613479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1865.

The product of its digits is 45360, while the sum is 37.

The square root of 25613479 is about 5060.9760916250. The cubic root of 25613479 is about 294.7742369203.

The spelling of 25613479 in words is "twenty-five million, six hundred thirteen thousand, four hundred seventy-nine".