25133652 has 30 divisors (see below), whose sum is σ = 65705178. Its totient is φ = 8377776.

The previous prime is 25133651. The next prime is 25133657. The reversal of 25133652 is 25633152.

25133652 is a `hidden beast` number, since 2 + 5 + 1 + 3 + 3 + 652 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25040016 + 93636 = 5004^2 + 306^2 .

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25133651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 38463 + ... + 39110.

Almost surely, 2^25133652 is an apocalyptic number.

It is an amenable number.

25133652 is an abundant number, since it is smaller than the sum of its proper divisors (40571526).

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

25133652 is a wasteful number, since it uses less digits than its factorization.

25133652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77589 (or 77578 counting only the distinct ones).

The product of its digits is 5400, while the sum is 27.

The square root of 25133652 is about 5013.3473847321. The cubic root of 25133652 is about 292.9219157710.

Subtracting 25133652 from its reverse (25633152), we obtain a triangular number (499500 = T₉₉₉).

The spelling of 25133652 in words is "twenty-five million, one hundred thirty-three thousand, six hundred fifty-two".