1825482881 has 4 divisors (see below), whose sum is σ = 1831713492. Its totient is φ = 1819252272.

The previous prime is 1825482863. The next prime is 1825482943. The reversal of 1825482881 is 1882845281.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1882845281 = 23669 ⋅79549.

It can be written as a sum of positive squares in 2 ways, for example, as 1506681856 + 318801025 = 38816^2 + 17855^2 .

It is a cyclic number.

It is not a de Polignac number, because 1825482881 - 2²² = 1821288577 is a prime.

It is a super-2 number, since 2×1825482881² = 6664775497648120322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1825482851) 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, 3114866 + ... + 3115451.

It is an arithmetic number, because the mean of its divisors is an integer number (457928373).

Almost surely, 2^1825482881 is an apocalyptic number.

It is an amenable number.

1825482881 is a deficient number, since it is larger than the sum of its proper divisors (6230611).

1825482881 is an equidigital number, since it uses as much as digits as its factorization.

1825482881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6230610.

The product of its digits is 327680, while the sum is 47.

The square root of 1825482881 is about 42725.6700474083. The cubic root of 1825482881 is about 1222.1539662675.

The spelling of 1825482881 in words is "one billion, eight hundred twenty-five million, four hundred eighty-two thousand, eight hundred eighty-one".