25284253 has 8 divisors (see below), whose sum is σ = 26845560. Its totient is φ = 23731200.

The previous prime is 25284247. The next prime is 25284271. The reversal of 25284253 is 35248252.

It can be written as a sum of positive squares in 4 ways, for example, as 12020089 + 13264164 = 3467^2 + 3642^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25284253 - 2⁵ = 25284221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25284053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4963 + ... + 8671.

It is an arithmetic number, because the mean of its divisors is an integer number (3355695).

Almost surely, 2^25284253 is an apocalyptic number.

It is an amenable number.

25284253 is a deficient number, since it is larger than the sum of its proper divisors (1561307).

25284253 is a wasteful number, since it uses less digits than its factorization.

25284253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127.

The product of its digits is 19200, while the sum is 31.

The square root of 25284253 is about 5028.3449563450. The cubic root of 25284253 is about 293.5058143951.

The spelling of 25284253 in words is "twenty-five million, two hundred eighty-four thousand, two hundred fifty-three".