21552348 has 24 divisors (see below), whose sum is σ = 50364160. Its totient is φ = 7173360.

The previous prime is 21552341. The next prime is 21552353. The reversal of 21552348 is 84325512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21552341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14043 + ... + 15501.

Almost surely, 2^21552348 is an apocalyptic number.

It is an amenable number.

21552348 is an abundant number, since it is smaller than the sum of its proper divisors (28811812).

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

21552348 is a wasteful number, since it uses less digits than its factorization.

21552348 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2697 (or 2695 counting only the distinct ones).

The product of its digits is 9600, while the sum is 30.

The square root of 21552348 is about 4642.4506459412. The cubic root of 21552348 is about 278.2903820161.

The spelling of 21552348 in words is "twenty-one million, five hundred fifty-two thousand, three hundred forty-eight".