25328831 has 8 divisors (see below), whose sum is σ = 28378704. Its totient is φ = 22403520.

The previous prime is 25328813. The next prime is 25328839. The reversal of 25328831 is 13882352.

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

It is a cyclic number.

It is not a de Polignac number, because 25328831 - 2²² = 21134527 is a prime.

It is a super-2 number, since 2×25328831² = 1283099359653122, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25328839) 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, 30710 + ... + 31523.

It is an arithmetic number, because the mean of its divisors is an integer number (3547338).

Almost surely, 2^25328831 is an apocalyptic number.

25328831 is a deficient number, since it is larger than the sum of its proper divisors (3049873).

25328831 is a wasteful number, since it uses less digits than its factorization.

25328831 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62281.

The product of its digits is 11520, while the sum is 32.

The square root of 25328831 is about 5032.7756755095. The cubic root of 25328831 is about 293.6782039113.

The spelling of 25328831 in words is "twenty-five million, three hundred twenty-eight thousand, eight hundred thirty-one".