25716969 has 24 divisors (see below), whose sum is σ = 38001600. Its totient is φ = 16755552.

The previous prime is 25716941. The next prime is 25716973. The reversal of 25716969 is 96961752.

It is a happy number.

It is not a de Polignac number, because 25716969 - 2⁷ = 25716841 is a prime.

It is a super-2 number, since 2×25716969² = 1322724989093922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25716989) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 129132 + ... + 129330.

It is an arithmetic number, because the mean of its divisors is an integer number (1583400).

Almost surely, 2^25716969 is an apocalyptic number.

It is an amenable number.

25716969 is a deficient number, since it is larger than the sum of its proper divisors (12284631).

25716969 is a wasteful number, since it uses less digits than its factorization.

25716969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461 (or 458 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 25716969 is about 5071.1900970088. The cubic root of 25716969 is about 295.1707103489.

The spelling of 25716969 in words is "twenty-five million, seven hundred sixteen thousand, nine hundred sixty-nine".