25282791 has 12 divisors (see below), whose sum is σ = 38668032. Its totient is φ = 15863616.

The previous prime is 25282781. The next prime is 25282793. The reversal of 25282791 is 19728252.

It is not a de Polignac number, because 25282791 - 2¹¹ = 25280743 is a prime.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25282793) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 82471 + ... + 82776.

It is an arithmetic number, because the mean of its divisors is an integer number (3222336).

Almost surely, 2^25282791 is an apocalyptic number.

25282791 is a deficient number, since it is larger than the sum of its proper divisors (13385241).

25282791 is a wasteful number, since it uses less digits than its factorization.

25282791 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165270 (or 165267 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 25282791 is about 5028.1995783779. The cubic root of 25282791 is about 293.5001572011.

The spelling of 25282791 in words is "twenty-five million, two hundred eighty-two thousand, seven hundred ninety-one".