25256245 has 32 divisors (see below), whose sum is σ = 36288000. Its totient is φ = 16509696.

The previous prime is 25256243. The next prime is 25256251. The reversal of 25256245 is 54265252.

It is a happy number.

It is not a de Polignac number, because 25256245 - 2¹ = 25256243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25256243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 151152 + ... + 151318.

It is an arithmetic number, because the mean of its divisors is an integer number (1134000).

Almost surely, 2^25256245 is an apocalyptic number.

It is an amenable number.

25256245 is a deficient number, since it is larger than the sum of its proper divisors (11031755).

25256245 is a wasteful number, since it uses less digits than its factorization.

25256245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357.

The product of its digits is 24000, while the sum is 31.

The square root of 25256245 is about 5025.5591728682. The cubic root of 25256245 is about 293.3973997747.

The spelling of 25256245 in words is "twenty-five million, two hundred fifty-six thousand, two hundred forty-five".