25774864 has 20 divisors (see below), whose sum is σ = 50250256. Its totient is φ = 12807072.

The previous prime is 25774841. The next prime is 25774867. The reversal of 25774864 is 46847752.

25774864 is nontrivially palindromic in base 3.

It is a super-2 number, since 2×25774864² = 1328687228436992, 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 25774864.

It is not an unprimeable number, because it can be changed into a prime (25774867) 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, 2334 + ... + 7549.

Almost surely, 2^25774864 is an apocalyptic number.

It is an amenable number.

25774864 is a deficient number, since it is larger than the sum of its proper divisors (24475392).

25774864 is a wasteful number, since it uses less digits than its factorization.

25774864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10054 (or 10048 counting only the distinct ones).

The product of its digits is 376320, while the sum is 43.

The square root of 25774864 is about 5076.8951141421. The cubic root of 25774864 is about 295.3920441118.

The spelling of 25774864 in words is "twenty-five million, seven hundred seventy-four thousand, eight hundred sixty-four".