25965979 has 8 divisors (see below), whose sum is σ = 28108080. Its totient is φ = 23844576.

The previous prime is 25965977. The next prime is 25965983. The reversal of 25965979 is 97956952.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 25965979 - 2¹ = 25965977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (25965977) 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 7 ways as a sum of consecutive naturals, for example, 2509 + ... + 7630.

It is an arithmetic number, because the mean of its divisors is an integer number (3513510).

Almost surely, 2^25965979 is an apocalyptic number.

25965979 is a deficient number, since it is larger than the sum of its proper divisors (2142101).

25965979 is a wasteful number, since it uses less digits than its factorization.

25965979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10349.

The product of its digits is 1530900, while the sum is 52.

The square root of 25965979 is about 5095.6823880615. The cubic root of 25965979 is about 296.1203362373.

The spelling of 25965979 in words is "twenty-five million, nine hundred sixty-five thousand, nine hundred seventy-nine".