25783590313 has 4 divisors (see below), whose sum is σ = 27766943428. Its totient is φ = 23800237200.

The previous prime is 25783590307. The next prime is 25783590377. The reversal of 25783590313 is 31309538752.

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

It can be written as a sum of positive squares in 2 ways, for example, as 8225220249 + 17558370064 = 90693^2 + 132508^2 .

It is a cyclic number.

It is not a de Polignac number, because 25783590313 - 2⁵ = 25783590281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25789590313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 991676538 + ... + 991676563.

It is an arithmetic number, because the mean of its divisors is an integer number (6941735857).

Almost surely, 2^25783590313 is an apocalyptic number.

It is an amenable number.

25783590313 is a deficient number, since it is larger than the sum of its proper divisors (1983353115).

25783590313 is a wasteful number, since it uses less digits than its factorization.

25783590313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1983353114.

The product of its (nonzero) digits is 680400, while the sum is 46.

The spelling of 25783590313 in words is "twenty-five billion, seven hundred eighty-three million, five hundred ninety thousand, three hundred thirteen".