25268979 has 4 divisors (see below), whose sum is σ = 33691976. Its totient is φ = 16845984.

The previous prime is 25268977. The next prime is 25268981. The reversal of 25268979 is 97986252.

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

It is an interprime number because it is at equal distance from previous prime (25268977) and next prime (25268981).

It is not a de Polignac number, because 25268979 - 2¹ = 25268977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25268977) 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, 4211494 + ... + 4211499.

It is an arithmetic number, because the mean of its divisors is an integer number (8422994).

Almost surely, 2^25268979 is an apocalyptic number.

25268979 is a deficient number, since it is larger than the sum of its proper divisors (8422997).

25268979 is an equidigital number, since it uses as much as digits as its factorization.

25268979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8422996.

The product of its digits is 544320, while the sum is 48.

The square root of 25268979 is about 5026.8259369109. The cubic root of 25268979 is about 293.4467010433.

The spelling of 25268979 in words is "twenty-five million, two hundred sixty-eight thousand, nine hundred seventy-nine".