215220053 has 2 divisors, whose sum is σ = 215220054. Its totient is φ = 215220052.

The previous prime is 215220043. The next prime is 215220059. The reversal of 215220053 is 350022512.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 146942884 + 68277169 = 12122^2 + 8263^2 .

It is a cyclic number.

It is not a de Polignac number, because 215220053 - 2¹⁰ = 215219029 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (215220059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 107610026 + 107610027.

It is an arithmetic number, because the mean of its divisors is an integer number (107610027).

Almost surely, 2^215220053 is an apocalyptic number.

It is an amenable number.

215220053 is a deficient number, since it is larger than the sum of its proper divisors (1).

215220053 is an equidigital number, since it uses as much as digits as its factorization.

215220053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 215220053 is about 14670.3801245912. The cubic root of 215220053 is about 599.2769558805.

Adding to 215220053 its reverse (350022512), we get a palindrome (565242565).

The spelling of 215220053 in words is "two hundred fifteen million, two hundred twenty thousand, fifty-three".