20465063 has 4 divisors (see below), whose sum is σ = 20509728. Its totient is φ = 20420400.

The previous prime is 20465057. The next prime is 20465099. The reversal of 20465063 is 36056402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20465063 - 2⁴ = 20465047 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 (20465563) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21638 + ... + 22563.

It is an arithmetic number, because the mean of its divisors is an integer number (5127432).

Almost surely, 2^20465063 is an apocalyptic number.

20465063 is a deficient number, since it is larger than the sum of its proper divisors (44665).

20465063 is an equidigital number, since it uses as much as digits as its factorization.

20465063 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44664.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 20465063 is about 4523.8327776345. The cubic root of 20465063 is about 273.5296198983.

The spelling of 20465063 in words is "twenty million, four hundred sixty-five thousand, sixty-three".