25204253 has 4 divisors (see below), whose sum is σ = 25259388. Its totient is φ = 25149120.

The previous prime is 25204237. The next prime is 25204259. The reversal of 25204253 is 35240252.

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 5508409 + 19695844 = 2347^2 + 4438^2 .

It is a cyclic number.

It is not a de Polignac number, because 25204253 - 2⁴ = 25204237 is a prime.

It is a super-3 number, since 3×25204253³ (a number of 23 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25204259) 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, 26876 + ... + 27797.

It is an arithmetic number, because the mean of its divisors is an integer number (6314847).

Almost surely, 2^25204253 is an apocalyptic number.

It is an amenable number.

25204253 is a deficient number, since it is larger than the sum of its proper divisors (55135).

25204253 is an equidigital number, since it uses as much as digits as its factorization.

25204253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55134.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 25204253 is about 5020.3837502725. The cubic root of 25204253 is about 293.1959341305.

The spelling of 25204253 in words is "twenty-five million, two hundred four thousand, two hundred fifty-three".