25459791 has 16 divisors (see below), whose sum is σ = 40838400. Its totient is φ = 13782528.

The previous prime is 25459789. The next prime is 25459793. The reversal of 25459791 is 19795452.

It is an interprime number because it is at equal distance from previous prime (25459789) and next prime (25459793).

It is not a de Polignac number, because 25459791 - 2¹ = 25459789 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25459793) 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, 31506 + ... + 32303.

It is an arithmetic number, because the mean of its divisors is an integer number (2552400).

Almost surely, 2^25459791 is an apocalyptic number.

25459791 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

25459791 is a deficient number, since it is larger than the sum of its proper divisors (15378609).

25459791 is a wasteful number, since it uses less digits than its factorization.

25459791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63838.

The product of its digits is 113400, while the sum is 42.

The square root of 25459791 is about 5045.7696142412. The cubic root of 25459791 is about 294.1834779568.

The spelling of 25459791 in words is "twenty-five million, four hundred fifty-nine thousand, seven hundred ninety-one".