25402253 has 2 divisors, whose sum is σ = 25402254. Its totient is φ = 25402252.

The previous prime is 25402249. The next prime is 25402261. The reversal of 25402253 is 35220452.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24631369 + 770884 = 4963^2 + 878^2 .

It is a cyclic number.

It is not a de Polignac number, because 25402253 - 2² = 25402249 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25402243) 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 as a sum of consecutive naturals, namely, 12701126 + 12701127.

It is an arithmetic number, because the mean of its divisors is an integer number (12701127).

Almost surely, 2^25402253 is an apocalyptic number.

It is an amenable number.

25402253 is a deficient number, since it is larger than the sum of its proper divisors (1).

25402253 is an equidigital number, since it uses as much as digits as its factorization.

25402253 is an odious number, because the sum of its binary digits is odd.

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

The square root of 25402253 is about 5040.0647813297. The cubic root of 25402253 is about 293.9616969243.

The spelling of 25402253 in words is "twenty-five million, four hundred two thousand, two hundred fifty-three".