25780083 has 16 divisors (see below), whose sum is σ = 40346880. Its totient is φ = 14332896.

The previous prime is 25780063. The next prime is 25780087. The reversal of 25780083 is 38008752.

It is not a de Polignac number, because 25780083 - 2⁶ = 25780019 is a prime.

It is a super-2 number, since 2×25780083² = 1329225358973778, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25780087) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15813 + ... + 17366.

It is an arithmetic number, because the mean of its divisors is an integer number (2521680).

Almost surely, 2^25780083 is an apocalyptic number.

25780083 is a deficient number, since it is larger than the sum of its proper divisors (14566797).

25780083 is a wasteful number, since it uses less digits than its factorization.

25780083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33226.

The product of its (nonzero) digits is 13440, while the sum is 33.

The square root of 25780083 is about 5077.4090833810. The cubic root of 25780083 is about 295.4119801632.

The spelling of 25780083 in words is "twenty-five million, seven hundred eighty thousand, eighty-three".