20244533 has 2 divisors, whose sum is σ = 20244534. Its totient is φ = 20244532.

The previous prime is 20244517. The next prime is 20244551. The reversal of 20244533 is 33544202.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11142244 + 9102289 = 3338^2 + 3017^2 .

It is a cyclic number.

It is not a de Polignac number, because 20244533 - 2⁴ = 20244517 is a prime.

It is a super-2 number, since 2×20244533² = 819682232776178, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20244499 and 20244508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20244503) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10122266 + 10122267.

It is an arithmetic number, because the mean of its divisors is an integer number (10122267).

Almost surely, 2^20244533 is an apocalyptic number.

It is an amenable number.

20244533 is a deficient number, since it is larger than the sum of its proper divisors (1).

20244533 is an equidigital number, since it uses as much as digits as its factorization.

20244533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 20244533 is about 4499.3925145513. The cubic root of 20244533 is about 272.5435578324.

Adding to 20244533 its reverse (33544202), we get a palindrome (53788735).

The spelling of 20244533 in words is "twenty million, two hundred forty-four thousand, five hundred thirty-three".