25715255 has 4 divisors (see below), whose sum is σ = 30858312. Its totient is φ = 20572200.

The previous prime is 25715243. The next prime is 25715267. The reversal of 25715255 is 55251752.

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

It is an interprime number because it is at equal distance from previous prime (25715243) and next prime (25715267).

It is not a de Polignac number, because 25715255 - 2¹⁰ = 25714231 is a prime.

It is a super-2 number, since 2×25715255² = 1322548679430050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2571521 + ... + 2571530.

It is an arithmetic number, because the mean of its divisors is an integer number (7714578).

Almost surely, 2^25715255 is an apocalyptic number.

25715255 is a deficient number, since it is larger than the sum of its proper divisors (5143057).

25715255 is an equidigital number, since it uses as much as digits as its factorization.

25715255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5143056.

The product of its digits is 17500, while the sum is 32.

The square root of 25715255 is about 5071.0211003308. The cubic root of 25715255 is about 295.1641526316.

The spelling of 25715255 in words is "twenty-five million, seven hundred fifteen thousand, two hundred fifty-five".