22313505 has 32 divisors (see below), whose sum is σ = 38246400. Its totient is φ = 11074752.

The previous prime is 22313497. The next prime is 22313507. The reversal of 22313505 is 50531322.

It is not a de Polignac number, because 22313505 - 2³ = 22313497 is a prime.

It is a super-3 number, since 3×22313505³ (a number of 23 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (22313507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16152 + ... + 17478.

It is an arithmetic number, because the mean of its divisors is an integer number (1195200).

Almost surely, 2^22313505 is an apocalyptic number.

It is an amenable number.

22313505 is a deficient number, since it is larger than the sum of its proper divisors (15932895).

22313505 is a wasteful number, since it uses less digits than its factorization.

22313505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1413.

The product of its (nonzero) digits is 900, while the sum is 21.

The square root of 22313505 is about 4723.7172862059. The cubic root of 22313505 is about 281.5286502540.

Adding to 22313505 its reverse (50531322), we get a palindrome (72844827).

The spelling of 22313505 in words is "twenty-two million, three hundred thirteen thousand, five hundred five".