25716369 has 32 divisors (see below), whose sum is σ = 42024960. Its totient is φ = 13666752.

The previous prime is 25716343. The next prime is 25716371. The reversal of 25716369 is 96361752.

It is not a de Polignac number, because 25716369 - 2⁵ = 25716337 is a prime.

It is a super-2 number, since 2×25716369² = 1322663269088322, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (25716169) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 17152 + ... + 18590.

It is an arithmetic number, because the mean of its divisors is an integer number (1313280).

Almost surely, 2^25716369 is an apocalyptic number.

It is an amenable number.

25716369 is a deficient number, since it is larger than the sum of its proper divisors (16308591).

25716369 is a wasteful number, since it uses less digits than its factorization.

25716369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509.

The product of its digits is 68040, while the sum is 39.

The square root of 25716369 is about 5071.1309389524. The cubic root of 25716369 is about 295.1684147984.

The spelling of 25716369 in words is "twenty-five million, seven hundred sixteen thousand, three hundred sixty-nine".