25397683 has 4 divisors (see below), whose sum is σ = 25409808. Its totient is φ = 25385560.

The previous prime is 25397657. The next prime is 25397731. The reversal of 25397683 is 38679352.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 25397683 - 2²¹ = 23300531 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25397483) 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, 2023 + ... + 7408.

It is an arithmetic number, because the mean of its divisors is an integer number (6352452).

Almost surely, 2^25397683 is an apocalyptic number.

25397683 is a deficient number, since it is larger than the sum of its proper divisors (12125).

25397683 is an equidigital number, since it uses as much as digits as its factorization.

25397683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12124.

The product of its digits is 272160, while the sum is 43.

The square root of 25397683 is about 5039.6113937485. The cubic root of 25397683 is about 293.9440674444.

The spelling of 25397683 in words is "twenty-five million, three hundred ninety-seven thousand, six hundred eighty-three".