25879511 has 4 divisors (see below), whose sum is σ = 29576592. Its totient is φ = 22182432.

The previous prime is 25879499. The next prime is 25879517. The reversal of 25879511 is 11597852.

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

It is a cyclic number.

It is not a de Polignac number, because 25879511 - 2¹⁴ = 25863127 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 (25879517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1848530 + ... + 1848543.

It is an arithmetic number, because the mean of its divisors is an integer number (7394148).

Almost surely, 2^25879511 is an apocalyptic number.

25879511 is a deficient number, since it is larger than the sum of its proper divisors (3697081).

25879511 is an equidigital number, since it uses as much as digits as its factorization.

25879511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3697080.

The product of its digits is 25200, while the sum is 38.

The square root of 25879511 is about 5087.1908751294. The cubic root of 25879511 is about 295.7912722233.

The spelling of 25879511 in words is "twenty-five million, eight hundred seventy-nine thousand, five hundred eleven".