25435255 has 4 divisors (see below), whose sum is σ = 30522312. Its totient is φ = 20348200.

The previous prime is 25435237. The next prime is 25435271. The reversal of 25435255 is 55253452.

It is a happy number.

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

It is not a de Polignac number, because 25435255 - 2⁷ = 25435127 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 2543521 + ... + 2543530.

It is an arithmetic number, because the mean of its divisors is an integer number (7630578).

Almost surely, 2^25435255 is an apocalyptic number.

25435255 is a deficient number, since it is larger than the sum of its proper divisors (5087057).

25435255 is an equidigital number, since it uses as much as digits as its factorization.

25435255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5087056.

The product of its digits is 30000, while the sum is 31.

The square root of 25435255 is about 5043.3376845101. The cubic root of 25435255 is about 294.0889445049.

The spelling of 25435255 in words is "twenty-five million, four hundred thirty-five thousand, two hundred fifty-five".