20460533 has 2 divisors, whose sum is σ = 20460534. Its totient is φ = 20460532.

The previous prime is 20460529. The next prime is 20460553. The reversal of 20460533 is 33506402.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19298449 + 1162084 = 4393^2 + 1078^2 .

It is a cyclic number.

It is not a de Polignac number, because 20460533 - 2² = 20460529 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20460499 and 20460508.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20460523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10230266 + 10230267.

It is an arithmetic number, because the mean of its divisors is an integer number (10230267).

Almost surely, 2^20460533 is an apocalyptic number.

It is an amenable number.

20460533 is a deficient number, since it is larger than the sum of its proper divisors (1).

20460533 is an equidigital number, since it uses as much as digits as its factorization.

20460533 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 20460533 is about 4523.3320682877. The cubic root of 20460533 is about 273.5094362221.

Adding to 20460533 its reverse (33506402), we get a palindrome (53966935).

The spelling of 20460533 in words is "twenty million, four hundred sixty thousand, five hundred thirty-three".