25351255 has 4 divisors (see below), whose sum is σ = 30421512. Its totient is φ = 20281000.

The previous prime is 25351223. The next prime is 25351289. The reversal of 25351255 is 55215352.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25351255 - 2⁵ = 25351223 is a prime.

It is a super-2 number, since 2×25351255² = 1285372260150050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2535121 + ... + 2535130.

It is an arithmetic number, because the mean of its divisors is an integer number (7605378).

Almost surely, 2^25351255 is an apocalyptic number.

25351255 is a deficient number, since it is larger than the sum of its proper divisors (5070257).

25351255 is an equidigital number, since it uses as much as digits as its factorization.

25351255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5070256.

The product of its digits is 7500, while the sum is 28.

The square root of 25351255 is about 5035.0029791451. The cubic root of 25351255 is about 293.7648442778.

The spelling of 25351255 in words is "twenty-five million, three hundred fifty-one thousand, two hundred fifty-five".