1825803705 has 32 divisors (see below), whose sum is σ = 3225277440. Its totient is φ = 874566080.

The previous prime is 1825803701. The next prime is 1825803751. The reversal of 1825803705 is 5073085281.

It is not a de Polignac number, because 1825803705 - 2² = 1825803701 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1825803701) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52965 + ... + 80354.

It is an arithmetic number, because the mean of its divisors is an integer number (100789920).

Almost surely, 2^1825803705 is an apocalyptic number.

1825803705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1825803705 is a deficient number, since it is larger than the sum of its proper divisors (1399473735).

1825803705 is a wasteful number, since it uses less digits than its factorization.

1825803705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133421.

The product of its (nonzero) digits is 67200, while the sum is 39.

The square root of 1825803705 is about 42729.4243466958. The cubic root of 1825803705 is about 1222.2255588966.

Adding to 1825803705 its reverse (5073085281), we get a palindrome (6898888986).

The spelling of 1825803705 in words is "one billion, eight hundred twenty-five million, eight hundred three thousand, seven hundred five".