22563534 has 32 divisors (see below), whose sum is σ = 52425216. Its totient is φ = 6340320.

The previous prime is 22563533. The next prime is 22563551. The reversal of 22563534 is 43536522.

It is a super-2 number, since 2×22563534² = 1018226133138312, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22563533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1842 + ... + 6965.

It is an arithmetic number, because the mean of its divisors is an integer number (1638288).

Almost surely, 2^22563534 is an apocalyptic number.

22563534 is an abundant number, since it is smaller than the sum of its proper divisors (29861682).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22563534 is a wasteful number, since it uses less digits than its factorization.

22563534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8880.

The product of its digits is 21600, while the sum is 30.

The square root of 22563534 is about 4750.1088408583. The cubic root of 22563534 is about 282.5762824254.

The spelling of 22563534 in words is "twenty-two million, five hundred sixty-three thousand, five hundred thirty-four".