25394855 has 16 divisors (see below), whose sum is σ = 32477760. Its totient is φ = 18995712.

The previous prime is 25394851. The next prime is 25394857. The reversal of 25394855 is 55849352.

It is a cyclic number.

It is not a de Polignac number, because 25394855 - 2² = 25394851 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25394851) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13301 + ... + 15089.

It is an arithmetic number, because the mean of its divisors is an integer number (2029860).

Almost surely, 2^25394855 is an apocalyptic number.

25394855 is a deficient number, since it is larger than the sum of its proper divisors (7082905).

25394855 is a wasteful number, since it uses less digits than its factorization.

25394855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978.

The product of its digits is 216000, while the sum is 41.

The square root of 25394855 is about 5039.3308087483. The cubic root of 25394855 is about 293.9331569390.

The spelling of 25394855 in words is "twenty-five million, three hundred ninety-four thousand, eight hundred fifty-five".