25745652 has 18 divisors (see below), whose sum is σ = 65079378. Its totient is φ = 8581872.

The previous prime is 25745641. The next prime is 25745689. The reversal of 25745652 is 25654752.

25745652 is a `hidden beast` number, since 25 + 74 + 565 + 2 = 666.

It can be written as a sum of positive squares in only one way, i.e., 25341156 + 404496 = 5034^2 + 636^2 .

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

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), and also a Moran number because the ratio is a prime number: 715157 = 25745652 / (2 + 5 + 7 + 4 + 5 + 6 + 5 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 357543 + ... + 357614.

It is an arithmetic number, because the mean of its divisors is an integer number (3615521).

Almost surely, 2^25745652 is an apocalyptic number.

It is an amenable number.

25745652 is an abundant number, since it is smaller than the sum of its proper divisors (39333726).

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

25745652 is a wasteful number, since it uses less digits than its factorization.

25745652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 715167 (or 715162 counting only the distinct ones).

The product of its digits is 84000, while the sum is 36.

The square root of 25745652 is about 5074.0173432892. The cubic root of 25745652 is about 295.2804075145.

The spelling of 25745652 in words is "twenty-five million, seven hundred forty-five thousand, six hundred fifty-two".