22553694 has 32 divisors (see below), whose sum is σ = 50976000. Its totient is φ = 7389432.

The previous prime is 22553693. The next prime is 22553711. The reversal of 22553694 is 49635522.

It is a super-2 number, since 2×22553694² = 1017338226091272, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22553693) 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 15 ways as a sum of consecutive naturals, for example, 354 + ... + 6725.

It is an arithmetic number, because the mean of its divisors is an integer number (1593000).

Almost surely, 2^22553694 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22553694, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25488000).

22553694 is an abundant number, since it is smaller than the sum of its proper divisors (28422306).

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

22553694 is a wasteful number, since it uses less digits than its factorization.

22553694 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7149 (or 7143 counting only the distinct ones).

The product of its digits is 64800, while the sum is 36.

The square root of 22553694 is about 4749.0729621685. The cubic root of 22553694 is about 282.5351991017.

The spelling of 22553694 in words is "twenty-two million, five hundred fifty-three thousand, six hundred ninety-four".