216426552 has 16 divisors (see below), whose sum is σ = 541066440. Its totient is φ = 72142176.

The previous prime is 216426503. The next prime is 216426557. The reversal of 216426552 is 255624612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216426557) 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 3 ways as a sum of consecutive naturals, for example, 4508863 + ... + 4508910.

Almost surely, 2^216426552 is an apocalyptic number.

It is an amenable number.

216426552 is an abundant number, since it is smaller than the sum of its proper divisors (324639888).

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

216426552 is a wasteful number, since it uses less digits than its factorization.

216426552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9017782 (or 9017778 counting only the distinct ones).

The product of its digits is 28800, while the sum is 33.

The square root of 216426552 is about 14711.4428932039. The cubic root of 216426552 is about 600.3946958573.

The spelling of 216426552 in words is "two hundred sixteen million, four hundred twenty-six thousand, five hundred fifty-two".