216761552 has 20 divisors (see below), whose sum is σ = 479972256. Its totient is φ = 92897760.

The previous prime is 216761551. The next prime is 216761599. The reversal of 216761552 is 255167612.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (216761551) 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, 967574 + ... + 967797.

Almost surely, 2^216761552 is an apocalyptic number.

It is an amenable number.

216761552 is an abundant number, since it is smaller than the sum of its proper divisors (263210704).

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

216761552 is a wasteful number, since it uses less digits than its factorization.

216761552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1935386 (or 1935380 counting only the distinct ones).

The product of its digits is 25200, while the sum is 35.

The square root of 216761552 is about 14722.8241855970. The cubic root of 216761552 is about 600.7043136544.

The spelling of 216761552 in words is "two hundred sixteen million, seven hundred sixty-one thousand, five hundred fifty-two".