25736652 has 18 divisors (see below), whose sum is σ = 65056628. Its totient is φ = 8578872.

The previous prime is 25736651. The next prime is 25736681. The reversal of 25736652 is 25663752.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (36), and also a Moran number because the ratio is a prime number: 714907 = 25736652 / (2 + 5 + 7 + 3 + 6 + 6 + 5 + 2).

It is not an unprimeable number, because it can be changed into a prime (25736651) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357418 + ... + 357489.

Almost surely, 2^25736652 is an apocalyptic number.

It is an amenable number.

25736652 is an abundant number, since it is smaller than the sum of its proper divisors (39319976).

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

25736652 is a wasteful number, since it uses less digits than its factorization.

25736652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714917 (or 714912 counting only the distinct ones).

The product of its digits is 75600, while the sum is 36.

The square root of 25736652 is about 5073.1303945395. The cubic root of 25736652 is about 295.2459960937.

Subtracting from 25736652 its reverse (25663752), we obtain a square (72900 = 270²).

The spelling of 25736652 in words is "twenty-five million, seven hundred thirty-six thousand, six hundred fifty-two".