25780283 has 4 divisors (see below), whose sum is σ = 27137160. Its totient is φ = 24423408.

The previous prime is 25780277. The next prime is 25780289. The reversal of 25780283 is 38208752.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (25780277) and next prime (25780289).

It is a cyclic number.

It is not a de Polignac number, because 25780283 - 2¹² = 25776187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25780289) by changing a digit.

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, 678410 + ... + 678447.

It is an arithmetic number, because the mean of its divisors is an integer number (6784290).

Almost surely, 2^25780283 is an apocalyptic number.

25780283 is a deficient number, since it is larger than the sum of its proper divisors (1356877).

25780283 is a wasteful number, since it uses less digits than its factorization.

25780283 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1356876.

The product of its (nonzero) digits is 26880, while the sum is 35.

The square root of 25780283 is about 5077.4287784271. The cubic root of 25780283 is about 295.4127440894.

The spelling of 25780283 in words is "twenty-five million, seven hundred eighty thousand, two hundred eighty-three".