25255575 has 18 divisors (see below), whose sum is σ = 45235944. Its totient is φ = 13469520.

The previous prime is 25255561. The next prime is 25255609. The reversal of 25255575 is 57555252.

It is not a de Polignac number, because 25255575 - 2⁶ = 25255511 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 55899 + ... + 56348.

It is an arithmetic number, because the mean of its divisors is an integer number (2513108).

Almost surely, 2^25255575 is an apocalyptic number.

25255575 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

25255575 is a deficient number, since it is larger than the sum of its proper divisors (19980369).

25255575 is a wasteful number, since it uses less digits than its factorization.

25255575 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112263 (or 112255 counting only the distinct ones).

The product of its digits is 87500, while the sum is 36.

The square root of 25255575 is about 5025.4925131772. The cubic root of 25255575 is about 293.3948053273.

It can be divided in two parts, 2525 and 5575, that added together give a square (8100 = 90²).

The spelling of 25255575 in words is "twenty-five million, two hundred fifty-five thousand, five hundred seventy-five".