25400966 has 8 divisors (see below), whose sum is σ = 39330624. Its totient is φ = 12290760.

The previous prime is 25400953. The next prime is 25400971. The reversal of 25400966 is 66900452.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 204785 + ... + 204908.

It is an arithmetic number, because the mean of its divisors is an integer number (4916328).

Almost surely, 2^25400966 is an apocalyptic number.

25400966 is a deficient number, since it is larger than the sum of its proper divisors (13929658).

25400966 is a wasteful number, since it uses less digits than its factorization.

25400966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409726.

The product of its (nonzero) digits is 12960, while the sum is 32.

The square root of 25400966 is about 5039.9371027821. The cubic root of 25400966 is about 293.9567323372.

The spelling of 25400966 in words is "twenty-five million, four hundred thousand, nine hundred sixty-six".