16820053 has 2 divisors, whose sum is σ = 16820054. Its totient is φ = 16820052.

The previous prime is 16820047. The next prime is 16820071. The reversal of 16820053 is 35002861.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9108324 + 7711729 = 3018^2 + 2777^2 .

It is an emirp because it is prime and its reverse (35002861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16820053 is a prime.

It is equal to p_1080484 and since 16820053 and 1080484 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16820653) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8410026 + 8410027.

It is an arithmetic number, because the mean of its divisors is an integer number (8410027).

Almost surely, 2^16820053 is an apocalyptic number.

It is an amenable number.

16820053 is a deficient number, since it is larger than the sum of its proper divisors (1).

16820053 is an equidigital number, since it uses as much as digits as its factorization.

16820053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 16820053 is about 4101.2257923699. The cubic root of 16820053 is about 256.2176950749.

The spelling of 16820053 in words is "sixteen million, eight hundred twenty thousand, fifty-three".