25217396 has 6 divisors (see below), whose sum is σ = 44130450. Its totient is φ = 12608696.

The previous prime is 25217371. The next prime is 25217417. The reversal of 25217396 is 69371252.

It can be written as a sum of positive squares in only one way, i.e., 21492496 + 3724900 = 4636^2 + 1930^2 .

It is a super-2 number, since 2×25217396² = 1271834122041632, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3152171 + ... + 3152178.

It is an arithmetic number, because the mean of its divisors is an integer number (7355075).

Almost surely, 2^25217396 is an apocalyptic number.

It is an amenable number.

25217396 is a deficient number, since it is larger than the sum of its proper divisors (18913054).

25217396 is a wasteful number, since it uses less digits than its factorization.

25217396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6304353 (or 6304351 counting only the distinct ones).

The product of its digits is 22680, while the sum is 35.

The square root of 25217396 is about 5021.6925433563. The cubic root of 25217396 is about 293.2468885540.

The spelling of 25217396 in words is "twenty-five million, two hundred seventeen thousand, three hundred ninety-six".