25652769 has 8 divisors (see below), whose sum is σ = 34232832. Its totient is φ = 17087280.

The previous prime is 25652761. The next prime is 25652773. The reversal of 25652769 is 96725652.

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

It is not a de Polignac number, because 25652769 - 2³ = 25652761 is a prime.

It is a super-2 number, since 2×25652769² = 1316129114734722, which contains 22 as substring.

It is an alternating number because its digits alternate between even and odd.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 25652769.

It is not an unprimeable number, because it can be changed into a prime (25652761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1507 + ... + 7319.

It is an arithmetic number, because the mean of its divisors is an integer number (4279104).

Almost surely, 2^25652769 is an apocalyptic number.

It is an amenable number.

25652769 is a deficient number, since it is larger than the sum of its proper divisors (8580063).

25652769 is a wasteful number, since it uses less digits than its factorization.

25652769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7287.

The product of its digits is 226800, while the sum is 42.

The square root of 25652769 is about 5064.8562664700. The cubic root of 25652769 is about 294.9248836803.

The spelling of 25652769 in words is "twenty-five million, six hundred fifty-two thousand, seven hundred sixty-nine".