25605463 has 16 divisors (see below), whose sum is σ = 29776320. Its totient is φ = 21821184.

The previous prime is 25605449. The next prime is 25605479. The reversal of 25605463 is 36450652.

It is a cyclic number.

It is not a de Polignac number, because 25605463 - 2⁵ = 25605431 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 (25605493) 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, 7195 + ... + 10147.

It is an arithmetic number, because the mean of its divisors is an integer number (1861020).

Almost surely, 2^25605463 is an apocalyptic number.

25605463 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

25605463 is a deficient number, since it is larger than the sum of its proper divisors (4170857).

25605463 is a wasteful number, since it uses less digits than its factorization.

25605463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3018.

The product of its (nonzero) digits is 21600, while the sum is 31.

The square root of 25605463 is about 5060.1840875605. The cubic root of 25605463 is about 294.7434828419.

The spelling of 25605463 in words is "twenty-five million, six hundred five thousand, four hundred sixty-three".