25780450 has 24 divisors (see below), whose sum is σ = 48211200. Its totient is φ = 10256400.

The previous prime is 25780439. The next prime is 25780457. The reversal of 25780450 is 5408752.

It is not an unprimeable number, because it can be changed into a prime (25780457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8655 + ... + 11245.

It is an arithmetic number, because the mean of its divisors is an integer number (2008800).

Almost surely, 2^25780450 is an apocalyptic number.

25780450 is a deficient number, since it is larger than the sum of its proper divisors (22430750).

25780450 is a wasteful number, since it uses less digits than its factorization.

25780450 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2802 (or 2797 counting only the distinct ones).

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 25780450 is about 5077.4452237321. The cubic root of 25780450 is about 295.4133819647.

The spelling of 25780450 in words is "twenty-five million, seven hundred eighty thousand, four hundred fifty".