20117852 has 6 divisors (see below), whose sum is σ = 35206248. Its totient is φ = 10058924.

The previous prime is 20117843. The next prime is 20117863. The reversal of 20117852 is 25871102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2514728 + ... + 2514735.

It is an arithmetic number, because the mean of its divisors is an integer number (5867708).

Almost surely, 2^20117852 is an apocalyptic number.

It is an amenable number.

20117852 is a deficient number, since it is larger than the sum of its proper divisors (15088396).

20117852 is a wasteful number, since it uses less digits than its factorization.

20117852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5029467 (or 5029465 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 26.

The square root of 20117852 is about 4485.2928555447. The cubic root of 20117852 is about 271.9738837382.

Adding to 20117852 its reverse (25871102), we get a palindrome (45988954).

The spelling of 20117852 in words is "twenty million, one hundred seventeen thousand, eight hundred fifty-two".