25465563 has 16 divisors (see below), whose sum is σ = 37833600. Its totient is φ = 16929000.

The previous prime is 25465553. The next prime is 25465579. The reversal of 25465563 is 36556452.

It is a happy number.

25465563 is a `hidden beast` number, since 2 + 546 + 55 + 63 = 666.

It is not a de Polignac number, because 25465563 - 2⁴ = 25465547 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25465513) 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, 10188 + ... + 12438.

It is an arithmetic number, because the mean of its divisors is an integer number (2364600).

Almost surely, 2^25465563 is an apocalyptic number.

25465563 is a deficient number, since it is larger than the sum of its proper divisors (12368037).

25465563 is a wasteful number, since it uses less digits than its factorization.

25465563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2679 (or 2673 counting only the distinct ones).

The product of its digits is 108000, while the sum is 36.

The square root of 25465563 is about 5046.3415461104. The cubic root of 25465563 is about 294.2057077640.

The spelling of 25465563 in words is "twenty-five million, four hundred sixty-five thousand, five hundred sixty-three".