805022553 has 4 divisors (see below), whose sum is σ = 1073363408. Its totient is φ = 536681700.

The previous prime is 805022521. The next prime is 805022587. The reversal of 805022553 is 355220508.

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 not a de Polignac number, because 805022553 - 2⁵ = 805022521 is a prime.

It is a super-2 number, since 2×805022553² = 1296122621677275618, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 805022553.

It is not an unprimeable number, because it can be changed into a prime (805022593) 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, 134170423 + ... + 134170428.

It is an arithmetic number, because the mean of its divisors is an integer number (268340852).

Almost surely, 2^805022553 is an apocalyptic number.

It is an amenable number.

805022553 is a deficient number, since it is larger than the sum of its proper divisors (268340855).

805022553 is a wasteful number, since it uses less digits than its factorization.

805022553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268340854.

The product of its (nonzero) digits is 12000, while the sum is 30.

The square root of 805022553 is about 28372.9193598403. The cubic root of 805022553 is about 930.2564340837.

It can be divided in two parts, 8050 and 22553, that added together give a palindrome (30603).

The spelling of 805022553 in words is "eight hundred five million, twenty-two thousand, five hundred fifty-three".