25168164 has 72 divisors (see below), whose sum is σ = 71322048. Its totient is φ = 6874560.

The previous prime is 25168147. The next prime is 25168189. The reversal of 25168164 is 46186152.

It is a hoax number, since the sum of its digits (33) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12594 + ... + 14454.

It is an arithmetic number, because the mean of its divisors is an integer number (990584).

Almost surely, 2^25168164 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 25168164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (35661024).

25168164 is an abundant number, since it is smaller than the sum of its proper divisors (46153884).

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

25168164 is a wasteful number, since it uses less digits than its factorization.

25168164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1905 (or 1896 counting only the distinct ones).

The product of its digits is 11520, while the sum is 33.

The square root of 25168164 is about 5016.7882155818. The cubic root of 25168164 is about 293.0559286278.

The spelling of 25168164 in words is "twenty-five million, one hundred sixty-eight thousand, one hundred sixty-four".