25945155 has 24 divisors (see below), whose sum is σ = 45236880. Its totient is φ = 13755840.

The previous prime is 25945099. The next prime is 25945163. The reversal of 25945155 is 55154952.

It is not a de Polignac number, because 25945155 - 2⁷ = 25945027 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6445 + ... + 9665.

It is an arithmetic number, because the mean of its divisors is an integer number (1884870).

Almost surely, 2^25945155 is an apocalyptic number.

25945155 is a deficient number, since it is larger than the sum of its proper divisors (19291725).

25945155 is a wasteful number, since it uses less digits than its factorization.

25945155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3411 (or 3408 counting only the distinct ones).

The product of its digits is 45000, while the sum is 36.

The square root of 25945155 is about 5093.6386797652. The cubic root of 25945155 is about 296.0411549485.

The spelling of 25945155 in words is "twenty-five million, nine hundred forty-five thousand, one hundred fifty-five".