25135164 has 48 divisors (see below), whose sum is σ = 65533440. Its totient is φ = 8331120.

The previous prime is 25135153. The next prime is 25135171. The reversal of 25135164 is 46153152.

25135164 is a `hidden beast` number, since 251 + 351 + 64 = 666.

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 15 ways as a sum of consecutive naturals, for example, 22237 + ... + 23339.

It is an arithmetic number, because the mean of its divisors is an integer number (1365280).

Almost surely, 2^25135164 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 25135164, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (32766720).

25135164 is an abundant number, since it is smaller than the sum of its proper divisors (40398276).

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

25135164 is a wasteful number, since it uses less digits than its factorization.

25135164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327 (or 1319 counting only the distinct ones).

The product of its digits is 3600, while the sum is 27.

The square root of 25135164 is about 5013.4981799139. The cubic root of 25135164 is about 292.9277895567.

The spelling of 25135164 in words is "twenty-five million, one hundred thirty-five thousand, one hundred sixty-four".