25274861 has 16 divisors (see below), whose sum is σ = 27316224. Its totient is φ = 23328624.

The previous prime is 25274831. The next prime is 25274867. The reversal of 25274861 is 16847252.

It is not a de Polignac number, because 25274861 - 2¹⁸ = 25012717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25274867) 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, 111230 + ... + 111456.

It is an arithmetic number, because the mean of its divisors is an integer number (1707264).

Almost surely, 2^25274861 is an apocalyptic number.

It is an amenable number.

25274861 is a deficient number, since it is larger than the sum of its proper divisors (2041363).

25274861 is a wasteful number, since it uses less digits than its factorization.

25274861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400.

The product of its digits is 26880, while the sum is 35.

The square root of 25274861 is about 5027.4109639058. The cubic root of 25274861 is about 293.4694683474.

The spelling of 25274861 in words is "twenty-five million, two hundred seventy-four thousand, eight hundred sixty-one".