25671955 has 16 divisors (see below), whose sum is σ = 32853600. Its totient is φ = 19190272.

The previous prime is 25671953. The next prime is 25671959. The reversal of 25671955 is 55917652.

It is a cyclic number.

It is not a de Polignac number, because 25671955 - 2¹ = 25671953 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25671953) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 11652 + ... + 13678.

It is an arithmetic number, because the mean of its divisors is an integer number (2053350).

Almost surely, 2^25671955 is an apocalyptic number.

25671955 is a deficient number, since it is larger than the sum of its proper divisors (7181645).

25671955 is a wasteful number, since it uses less digits than its factorization.

25671955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2198.

The product of its digits is 94500, while the sum is 40.

The square root of 25671955 is about 5066.7499444910. The cubic root of 25671955 is about 294.9983912581.

The spelling of 25671955 in words is "twenty-five million, six hundred seventy-one thousand, nine hundred fifty-five".