25706257283 has 4 divisors (see below), whose sum is σ = 29378579760. Its totient is φ = 22033934808.

The previous prime is 25706257237. The next prime is 25706257337. The reversal of 25706257283 is 38275260752.

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

It is a cyclic number.

It is not a de Polignac number, because 25706257283 - 2¹⁴ = 25706240899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (25706257783) 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, 1836161228 + ... + 1836161241.

It is an arithmetic number, because the mean of its divisors is an integer number (7344644940).

Almost surely, 2^25706257283 is an apocalyptic number.

25706257283 is a deficient number, since it is larger than the sum of its proper divisors (3672322477).

25706257283 is an equidigital number, since it uses as much as digits as its factorization.

25706257283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3672322476.

The product of its (nonzero) digits is 1411200, while the sum is 47.

The spelling of 25706257283 in words is "twenty-five billion, seven hundred six million, two hundred fifty-seven thousand, two hundred eighty-three".