20824852 has 6 divisors (see below), whose sum is σ = 36443498. Its totient is φ = 10412424.

The previous prime is 20824799. The next prime is 20824861. The reversal of 20824852 is 25842802.

It can be written as a sum of positive squares in only one way, i.e., 17606416 + 3218436 = 4196^2 + 1794^2 .

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, 2603103 + ... + 2603110.

Almost surely, 2^20824852 is an apocalyptic number.

It is an amenable number.

20824852 is a deficient number, since it is larger than the sum of its proper divisors (15618646).

20824852 is a wasteful number, since it uses less digits than its factorization.

20824852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5206217 (or 5206215 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 31.

The square root of 20824852 is about 4563.4254677819. The cubic root of 20824852 is about 275.1232593455.

The spelling of 20824852 in words is "twenty million, eight hundred twenty-four thousand, eight hundred fifty-two".