25979349 has 16 divisors (see below), whose sum is σ = 40011840. Its totient is φ = 14818560.

The previous prime is 25979347. The next prime is 25979357. The reversal of 25979349 is 94397952.

It is not a de Polignac number, because 25979349 - 2¹ = 25979347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25979298 and 25979307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25979347) 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, 22594 + ... + 23715.

It is an arithmetic number, because the mean of its divisors is an integer number (2500740).

Almost surely, 2^25979349 is an apocalyptic number.

It is an amenable number.

25979349 is a deficient number, since it is larger than the sum of its proper divisors (14032491).

25979349 is a wasteful number, since it uses less digits than its factorization.

25979349 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46340.

The product of its digits is 612360, while the sum is 48.

The square root of 25979349 is about 5096.9941141814. The cubic root of 25979349 is about 296.1711520832.

The spelling of 25979349 in words is "twenty-five million, nine hundred seventy-nine thousand, three hundred forty-nine".