25753864 has 8 divisors (see below), whose sum is σ = 48288510. Its totient is φ = 12876928.

The previous prime is 25753853. The next prime is 25753879. The reversal of 25753864 is 46835752.

It can be written as a sum of positive squares in only one way, i.e., 16402500 + 9351364 = 4050^2 + 3058^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1609609 + ... + 1609624.

Almost surely, 2^25753864 is an apocalyptic number.

It is an amenable number.

25753864 is a deficient number, since it is larger than the sum of its proper divisors (22534646).

25753864 is a wasteful number, since it uses less digits than its factorization.

25753864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3219239 (or 3219235 counting only the distinct ones).

The product of its digits is 201600, while the sum is 40.

The square root of 25753864 is about 5074.8264994973. The cubic root of 25753864 is about 295.3117990279.

The spelling of 25753864 in words is "twenty-five million, seven hundred fifty-three thousand, eight hundred sixty-four".