20265463 has 4 divisors (see below), whose sum is σ = 20320168. Its totient is φ = 20210760.

The previous prime is 20265433. The next prime is 20265467. The reversal of 20265463 is 36456202.

It is a happy number.

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 20265463 - 2¹³ = 20257271 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 (20265467) 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, 26793 + ... + 27538.

It is an arithmetic number, because the mean of its divisors is an integer number (5080042).

Almost surely, 2^20265463 is an apocalyptic number.

20265463 is a deficient number, since it is larger than the sum of its proper divisors (54705).

20265463 is an equidigital number, since it uses as much as digits as its factorization.

20265463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54704.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 20265463 is about 4501.7177832467. The cubic root of 20265463 is about 272.6374493861.

The spelling of 20265463 in words is "twenty million, two hundred sixty-five thousand, four hundred sixty-three".