22313855 has 4 divisors (see below), whose sum is σ = 26776632. Its totient is φ = 17851080.

The previous prime is 22313839. The next prime is 22313897. The reversal of 22313855 is 55831322.

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

It is not a de Polignac number, because 22313855 - 2⁴ = 22313839 is a prime.

It is a super-3 number, since 3×22313855³ (a number of 23 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2231381 + ... + 2231390.

It is an arithmetic number, because the mean of its divisors is an integer number (6694158).

Almost surely, 2^22313855 is an apocalyptic number.

22313855 is a deficient number, since it is larger than the sum of its proper divisors (4462777).

22313855 is an equidigital number, since it uses as much as digits as its factorization.

22313855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4462776.

The product of its digits is 7200, while the sum is 29.

The square root of 22313855 is about 4723.7543331549. The cubic root of 22313855 is about 281.5301222253.

The spelling of 22313855 in words is "twenty-two million, three hundred thirteen thousand, eight hundred fifty-five".