25710655 has 4 divisors (see below), whose sum is σ = 30852792. Its totient is φ = 20568520.

The previous prime is 25710637. The next prime is 25710677. The reversal of 25710655 is 55601752.

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

It is not a de Polignac number, because 25710655 - 2¹⁷ = 25579583 is a prime.

It is a super-2 number, since 2×25710655² = 1322075561058050, 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, 2571061 + ... + 2571070.

It is an arithmetic number, because the mean of its divisors is an integer number (7713198).

Almost surely, 2^25710655 is an apocalyptic number.

25710655 is a deficient number, since it is larger than the sum of its proper divisors (5142137).

25710655 is an equidigital number, since it uses as much as digits as its factorization.

25710655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5142136.

The product of its (nonzero) digits is 10500, while the sum is 31.

The square root of 25710655 is about 5070.5675224771. The cubic root of 25710655 is about 295.1465517164.

The spelling of 25710655 in words is "twenty-five million, seven hundred ten thousand, six hundred fifty-five".