215053 has 4 divisors (see below), whose sum is σ = 217728. Its totient is φ = 212380.

The previous prime is 215051. The next prime is 215063. The reversal of 215053 is 350512.

215053 is nontrivially palindromic in base 13.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 215053 - 2¹ = 215051 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1213 + ... + 1378.

It is an arithmetic number, because the mean of its divisors is an integer number (54432).

2²¹⁵⁰⁵³ is an apocalyptic number.

It is an amenable number.

215053 is a deficient number, since it is larger than the sum of its proper divisors (2675).

215053 is an equidigital number, since it uses as much as digits as its factorization.

215053 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2674.

The product of its (nonzero) digits is 150, while the sum is 16.

The square root of 215053 is about 463.7380726229. The cubic root of 215053 is about 59.9121863569.

Adding to 215053 its reverse (350512), we get a palindrome (565565).

The spelling of 215053 in words is "two hundred fifteen thousand, fifty-three".