25281255 has 32 divisors (see below), whose sum is σ = 42614784. Its totient is φ = 12773376.

The previous prime is 25281233. The next prime is 25281257. The reversal of 25281255 is 55218252.

It is not a de Polignac number, because 25281255 - 2⁸ = 25280999 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25281257) 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, 43527 + ... + 44103.

It is an arithmetic number, because the mean of its divisors is an integer number (1331712).

Almost surely, 2^25281255 is an apocalyptic number.

25281255 is a deficient number, since it is larger than the sum of its proper divisors (17333529).

25281255 is a wasteful number, since it uses less digits than its factorization.

25281255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735.

The product of its digits is 8000, while the sum is 30.

The square root of 25281255 is about 5028.0468374907. The cubic root of 25281255 is about 293.4942134300.

The spelling of 25281255 in words is "twenty-five million, two hundred eighty-one thousand, two hundred fifty-five".