2583874861 has 4 divisors (see below), whose sum is σ = 2584678300. Its totient is φ = 2583071424.

The previous prime is 2583874849. The next prime is 2583874873. The reversal of 2583874861 is 1684783852.

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 (2583874849) and next prime (2583874873).

It can be written as a sum of positive squares in 2 ways, for example, as 1375964836 + 1207910025 = 37094^2 + 34755^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2583874861 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2583874799 and 2583874808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2583814861) 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, 396876 + ... + 403333.

It is an arithmetic number, because the mean of its divisors is an integer number (646169575).

Almost surely, 2^2583874861 is an apocalyptic number.

It is an amenable number.

2583874861 is a deficient number, since it is larger than the sum of its proper divisors (803439).

2583874861 is an equidigital number, since it uses as much as digits as its factorization.

2583874861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 803438.

The product of its digits is 2580480, while the sum is 52.

The square root of 2583874861 is about 50831.8292116268. The cubic root of 2583874861 is about 1372.2202549733.

The spelling of 2583874861 in words is "two billion, five hundred eighty-three million, eight hundred seventy-four thousand, eight hundred sixty-one".