25820422 has 8 divisors (see below), whose sum is σ = 38752272. Its totient is φ = 12903000.

The previous prime is 25820419. The next prime is 25820429. The reversal of 25820422 is 22402852.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25820429) 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 3 ways as a sum of consecutive naturals, for example, 4647 + ... + 8557.

It is an arithmetic number, because the mean of its divisors is an integer number (4844034).

Almost surely, 2^25820422 is an apocalyptic number.

25820422 is a deficient number, since it is larger than the sum of its proper divisors (12931850).

25820422 is a wasteful number, since it uses less digits than its factorization.

25820422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7214.

The product of its (nonzero) digits is 2560, while the sum is 25.

The square root of 25820422 is about 5081.3799306881. The cubic root of 25820422 is about 295.5659803632.

The spelling of 25820422 in words is "twenty-five million, eight hundred twenty thousand, four hundred twenty-two".