25322978 has 8 divisors (see below), whose sum is σ = 38005968. Its totient is φ = 12654324.

The previous prime is 25322959. The next prime is 25322993. The reversal of 25322978 is 87922352.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 4325 + ... + 8327.

It is an arithmetic number, because the mean of its divisors is an integer number (4750746).

Almost surely, 2^25322978 is an apocalyptic number.

25322978 is a deficient number, since it is larger than the sum of its proper divisors (12682990).

25322978 is a wasteful number, since it uses less digits than its factorization.

25322978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7168.

The product of its digits is 60480, while the sum is 38.

The square root of 25322978 is about 5032.1941536471. The cubic root of 25322978 is about 293.6555810624.

The spelling of 25322978 in words is "twenty-five million, three hundred twenty-two thousand, nine hundred seventy-eight".