25235253 has 8 divisors (see below), whose sum is σ = 37385600. Its totient is φ = 16823484.

The previous prime is 25235239. The next prime is 25235269. The reversal of 25235253 is 35253252.

It is a de Polignac number, because none of the positive numbers 2^k-25235253 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 934639 = 25235253 / (2 + 5 + 2 + 3 + 5 + 2 + 5 + 3).

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25235233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 467293 + ... + 467346.

It is an arithmetic number, because the mean of its divisors is an integer number (4673200).

Almost surely, 2^25235253 is an apocalyptic number.

It is an amenable number.

25235253 is a deficient number, since it is larger than the sum of its proper divisors (12150347).

25235253 is an equidigital number, since it uses as much as digits as its factorization.

25235253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934648 (or 934642 counting only the distinct ones).

The product of its digits is 9000, while the sum is 27.

The square root of 25235253 is about 5023.4702149012. The cubic root of 25235253 is about 293.3160904408.

It can be divided in two parts, 252352 and 53, that added together give a triangular number (252405 = T₇₁₀).

The spelling of 25235253 in words is "twenty-five million, two hundred thirty-five thousand, two hundred fifty-three".