25164231 has 8 divisors (see below), whose sum is σ = 35011200. Its totient is φ = 16046712.

The previous prime is 25164229. The next prime is 25164253. The reversal of 25164231 is 13246152.

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

It is not a de Polignac number, because 25164231 - 2¹ = 25164229 is a prime.

It is a super-2 number, since 2×25164231² = 1266477043642722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25164211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182281 + ... + 182418.

It is an arithmetic number, because the mean of its divisors is an integer number (4376400).

Almost surely, 2^25164231 is an apocalyptic number.

25164231 is a deficient number, since it is larger than the sum of its proper divisors (9846969).

25164231 is a wasteful number, since it uses less digits than its factorization.

25164231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364725.

The product of its digits is 1440, while the sum is 24.

The square root of 25164231 is about 5016.3962164087. The cubic root of 25164231 is about 293.0406626618.

The spelling of 25164231 in words is "twenty-five million, one hundred sixty-four thousand, two hundred thirty-one".