20063215 has 16 divisors (see below), whose sum is σ = 25077600. Its totient is φ = 15390592.

The previous prime is 20063209. The next prime is 20063243. The reversal of 20063215 is 51236002.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20063215 is a prime.

It is a super-2 number, since 2×20063215² = 805065192272450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20063192 and 20063201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25569 + ... + 26341.

It is an arithmetic number, because the mean of its divisors is an integer number (1567350).

Almost surely, 2^20063215 is an apocalyptic number.

20063215 is a deficient number, since it is larger than the sum of its proper divisors (5014385).

20063215 is a wasteful number, since it uses less digits than its factorization.

20063215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 20063215 is about 4479.1980308979. The cubic root of 20063215 is about 271.7274473929.

Adding to 20063215 its reverse (51236002), we get a palindrome (71299217).

The spelling of 20063215 in words is "twenty million, sixty-three thousand, two hundred fifteen".