2239825566 has 64 divisors (see below), whose sum is σ = 4970555136. Its totient is φ = 667180800.

The previous prime is 2239825559. The next prime is 2239825573. The reversal of 2239825566 is 6655289322.

It is an interprime number because it is at equal distance from previous prime (2239825559) and next prime (2239825573).

It is a super-2 number, since 2×2239825566² = 10033637132214440712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1912161 + ... + 1913331.

It is an arithmetic number, because the mean of its divisors is an integer number (77664924).

Almost surely, 2^2239825566 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2239825566, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2485277568).

2239825566 is an abundant number, since it is smaller than the sum of its proper divisors (2730729570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2239825566 is a wasteful number, since it uses less digits than its factorization.

2239825566 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1657.

The product of its digits is 1555200, while the sum is 48.

The square root of 2239825566 is about 47326.7954334540. The cubic root of 2239825566 is about 1308.3925597902.

The spelling of 2239825566 in words is "two billion, two hundred thirty-nine million, eight hundred twenty-five thousand, five hundred sixty-six".