25758252 has 72 divisors (see below), whose sum is σ = 73198944. Its totient is φ = 7577856.

The previous prime is 25758233. The next prime is 25758277. The reversal of 25758252 is 25285752.

25758252 is a `hidden beast` number, since 2 + 575 + 82 + 5 + 2 = 666.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

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, 9568 + ... + 11960.

It is an arithmetic number, because the mean of its divisors is an integer number (1016652).

Almost surely, 2^25758252 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 25758252, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36599472).

25758252 is an abundant number, since it is smaller than the sum of its proper divisors (47440692).

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

25758252 is a wasteful number, since it uses less digits than its factorization.

25758252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2439 (or 2434 counting only the distinct ones).

The product of its digits is 56000, while the sum is 36.

The square root of 25758252 is about 5075.2588111347. The cubic root of 25758252 is about 295.3285700334.

The spelling of 25758252 in words is "twenty-five million, seven hundred fifty-eight thousand, two hundred fifty-two".