25365953 has 4 divisors (see below), whose sum is σ = 25389780. Its totient is φ = 25342128.

The previous prime is 25365943. The next prime is 25365983. The reversal of 25365953 is 35956352.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 485809 + 24880144 = 697^2 + 4988^2 .

It is a cyclic number.

It is not a de Polignac number, because 25365953 - 2¹⁶ = 25300417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25365943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10238 + ... + 12471.

It is an arithmetic number, because the mean of its divisors is an integer number (6347445).

Almost surely, 2^25365953 is an apocalyptic number.

It is an amenable number.

25365953 is a deficient number, since it is larger than the sum of its proper divisors (23827).

25365953 is a wasteful number, since it uses less digits than its factorization.

25365953 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23826.

The product of its digits is 121500, while the sum is 38.

The square root of 25365953 is about 5036.4623497054. The cubic root of 25365953 is about 293.8216057216.

The spelling of 25365953 in words is "twenty-five million, three hundred sixty-five thousand, nine hundred fifty-three".