2582815249 has 4 divisors (see below), whose sum is σ = 2951788864. Its totient is φ = 2213841636.

The previous prime is 2582815243. The next prime is 2582815283. The reversal of 2582815249 is 9425182852.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2582815249 - 2³ = 2582815241 is a prime.

It is a super-2 number, since 2×2582815249² = 13341869220933864002, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2582815199 and 2582815208.

It is not an unprimeable number, because it can be changed into a prime (2582815241) 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, 184486797 + ... + 184486810.

It is an arithmetic number, because the mean of its divisors is an integer number (737947216).

Almost surely, 2^2582815249 is an apocalyptic number.

It is an amenable number.

2582815249 is a deficient number, since it is larger than the sum of its proper divisors (368973615).

2582815249 is an equidigital number, since it uses as much as digits as its factorization.

2582815249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368973614.

The product of its digits is 460800, while the sum is 46.

The square root of 2582815249 is about 50821.4054213380. The cubic root of 2582815249 is about 1372.0326530278.

The spelling of 2582815249 in words is "two billion, five hundred eighty-two million, eight hundred fifteen thousand, two hundred forty-nine".