25878711 has 4 divisors (see below), whose sum is σ = 34504952. Its totient is φ = 17252472.

The previous prime is 25878691. The next prime is 25878737. The reversal of 25878711 is 11787852.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 25878711 - 2⁵ = 25878679 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 25878711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25878751) 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 3 ways as a sum of consecutive naturals, for example, 4313116 + ... + 4313121.

It is an arithmetic number, because the mean of its divisors is an integer number (8626238).

Almost surely, 2^25878711 is an apocalyptic number.

25878711 is a deficient number, since it is larger than the sum of its proper divisors (8626241).

25878711 is an equidigital number, since it uses as much as digits as its factorization.

25878711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8626240.

The product of its digits is 31360, while the sum is 39.

The square root of 25878711 is about 5087.1122456655. The cubic root of 25878711 is about 295.7882243108.

The spelling of 25878711 in words is "twenty-five million, eight hundred seventy-eight thousand, seven hundred eleven".