25980456 has 64 divisors (see below), whose sum is σ = 66977280. Its totient is φ = 8395200.

The previous prime is 25980439. The next prime is 25980457. The reversal of 25980456 is 65408952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25980457) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171981 + ... + 172131.

It is an arithmetic number, because the mean of its divisors is an integer number (1046520).

Almost surely, 2^25980456 is an apocalyptic number.

It is an amenable number.

25980456 is an abundant number, since it is smaller than the sum of its proper divisors (40996824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

25980456 is a wasteful number, since it uses less digits than its factorization.

25980456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 334 (or 330 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 39.

The square root of 25980456 is about 5097.1027064402. The cubic root of 25980456 is about 296.1753587168.

The spelling of 25980456 in words is "twenty-five million, nine hundred eighty thousand, four hundred fifty-six".