20264455 has 12 divisors (see below), whose sum is σ = 24935256. Its totient is φ = 15809600.

The previous prime is 20264437. The next prime is 20264467. The reversal of 20264455 is 55446202.

It is not a de Polignac number, because 20264455 - 2¹³ = 20256263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7200 + ... + 9610.

It is an arithmetic number, because the mean of its divisors is an integer number (2077938).

Almost surely, 2^20264455 is an apocalyptic number.

20264455 is a deficient number, since it is larger than the sum of its proper divisors (4670801).

20264455 is an equidigital number, since it uses as much as digits as its factorization.

20264455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2498 (or 2457 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 28.

The square root of 20264455 is about 4501.6058245919. The cubic root of 20264455 is about 272.6329290007.

The spelling of 20264455 in words is "twenty million, two hundred sixty-four thousand, four hundred fifty-five".