25906479 has 8 divisors (see below), whose sum is σ = 34573440. Its totient is φ = 17255256.

The previous prime is 25906477. The next prime is 25906513. The reversal of 25906479 is 97460952.

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

It is not a de Polignac number, because 25906479 - 2¹ = 25906477 is a prime.

It is a super-2 number, since 2×25906479² = 1342291308354882, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 25906479.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25906477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 684 + ... + 7230.

It is an arithmetic number, because the mean of its divisors is an integer number (4321680).

Almost surely, 2^25906479 is an apocalyptic number.

25906479 is a deficient number, since it is larger than the sum of its proper divisors (8666961).

25906479 is a wasteful number, since it uses less digits than its factorization.

25906479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7869.

The product of its (nonzero) digits is 136080, while the sum is 42.

The square root of 25906479 is about 5089.8407637175. The cubic root of 25906479 is about 295.8939806275.

The spelling of 25906479 in words is "twenty-five million, nine hundred six thousand, four hundred seventy-nine".