25420366 has 16 divisors (see below), whose sum is σ = 40242960. Its totient is φ = 12009600.

The previous prime is 25420361. The next prime is 25420379. The reversal of 25420366 is 66302452.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25420361) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20566 + ... + 21766.

It is an arithmetic number, because the mean of its divisors is an integer number (2515185).

Almost surely, 2^25420366 is an apocalyptic number.

25420366 is a deficient number, since it is larger than the sum of its proper divisors (14822594).

25420366 is a wasteful number, since it uses less digits than its factorization.

25420366 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1779.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 25420366 is about 5041.8613626319. The cubic root of 25420366 is about 294.0315498250.

The spelling of 25420366 in words is "twenty-five million, four hundred twenty thousand, three hundred sixty-six".