52216550 has 24 divisors (see below), whose sum is σ = 97426800. Its totient is φ = 20821280.

The previous prime is 52216543. The next prime is 52216553. The reversal of 52216550 is 5561225.

52216550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52216553) 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 11 ways as a sum of consecutive naturals, for example, 16496 + ... + 19404.

It is an arithmetic number, because the mean of its divisors is an integer number (4059450).

Almost surely, 2^52216550 is an apocalyptic number.

52216550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

52216550 is a deficient number, since it is larger than the sum of its proper divisors (45210250).

52216550 is a wasteful number, since it uses less digits than its factorization.

52216550 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3280 (or 3275 counting only the distinct ones).

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 52216550 is about 7226.1019920840. The cubic root of 52216550 is about 373.7685232968.

Adding to 52216550 its reverse (5561225), we get a palindrome (57777775).

The spelling of 52216550 in words is "fifty-two million, two hundred sixteen thousand, five hundred fifty".