25164423 has 12 divisors (see below), whose sum is σ = 36809760. Its totient is φ = 16563456.

The previous prime is 25164409. The next prime is 25164427. The reversal of 25164423 is 32446152.

It is not a de Polignac number, because 25164423 - 2¹² = 25160327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25164427) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16986 + ... + 18407.

It is an arithmetic number, because the mean of its divisors is an integer number (3067480).

Almost surely, 2^25164423 is an apocalyptic number.

25164423 is a deficient number, since it is larger than the sum of its proper divisors (11645337).

25164423 is a wasteful number, since it uses less digits than its factorization.

25164423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35478 (or 35475 counting only the distinct ones).

The product of its digits is 5760, while the sum is 27.

The square root of 25164423 is about 5016.4153536166. The cubic root of 25164423 is about 293.0414079480.

The spelling of 25164423 in words is "twenty-five million, one hundred sixty-four thousand, four hundred twenty-three".