25252457 has 2 divisors, whose sum is σ = 25252458. Its totient is φ = 25252456.

The previous prime is 25252441. The next prime is 25252529. The reversal of 25252457 is 75425252.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 25240576 + 11881 = 5024^2 + 109^2 .

It is a cyclic number.

It is not a de Polignac number, because 25252457 - 2⁴ = 25252441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (25252057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12626228 + 12626229.

It is an arithmetic number, because the mean of its divisors is an integer number (12626229).

Almost surely, 2^25252457 is an apocalyptic number.

It is an amenable number.

25252457 is a deficient number, since it is larger than the sum of its proper divisors (1).

25252457 is an equidigital number, since it uses as much as digits as its factorization.

25252457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28000, while the sum is 32.

The square root of 25252457 is about 5025.1822852510. The cubic root of 25252457 is about 293.3827308625.

It can be divided in two parts, 2525245 and 7, that added together give a palindrome (2525252).

The spelling of 25252457 in words is "twenty-five million, two hundred fifty-two thousand, four hundred fifty-seven".