25836978 has 16 divisors (see below), whose sum is σ = 51723936. Its totient is φ = 8604000.

The previous prime is 25836973. The next prime is 25836983. The reversal of 25836978 is 87963852.

It is an interprime number because it is at equal distance from previous prime (25836973) and next prime (25836983).

It is not an unprimeable number, because it can be changed into a prime (25836973) 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, 10353 + ... + 12603.

It is an arithmetic number, because the mean of its divisors is an integer number (3232746).

Almost surely, 2^25836978 is an apocalyptic number.

25836978 is an abundant number, since it is smaller than the sum of its proper divisors (25886958).

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

25836978 is a wasteful number, since it uses less digits than its factorization.

25836978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4169.

The product of its digits is 725760, while the sum is 48.

The square root of 25836978 is about 5083.0087546649. The cubic root of 25836978 is about 295.6291389599.

The spelling of 25836978 in words is "twenty-five million, eight hundred thirty-six thousand, nine hundred seventy-eight".