25243164 has 60 divisors (see below), whose sum is σ = 69887664. Its totient is φ = 7917696.

The previous prime is 25243157. The next prime is 25243171. The reversal of 25243164 is 46134252.

It is an interprime number because it is at equal distance from previous prime (25243157) and next prime (25243171).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3217 + ... + 7799.

Almost surely, 2^25243164 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 25243164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34943832).

25243164 is an abundant number, since it is smaller than the sum of its proper divisors (44644500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25243164 is a wasteful number, since it uses less digits than its factorization.

25243164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4616 (or 4605 counting only the distinct ones).

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

The square root of 25243164 is about 5024.2575570924. The cubic root of 25243164 is about 293.3467377942.

The spelling of 25243164 in words is "twenty-five million, two hundred forty-three thousand, one hundred sixty-four".