52220216 has 32 divisors (see below), whose sum is σ = 100504800. Its totient is φ = 25428480.

The previous prime is 52220177. The next prime is 52220219. The reversal of 52220216 is 61202225.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52220219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50036 + ... + 51068.

It is an arithmetic number, because the mean of its divisors is an integer number (3140775).

Almost surely, 2^52220216 is an apocalyptic number.

It is an amenable number.

52220216 is a deficient number, since it is larger than the sum of its proper divisors (48284584).

52220216 is a wasteful number, since it uses less digits than its factorization.

52220216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1199 (or 1195 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 52220216 is about 7226.3556513640. The cubic root of 52220216 is about 373.7772702257. Note that the first 3 decimals are identical.

Subtracting 52220216 from its reverse (61202225), we obtain a square (8982009 = 2997²).

The spelling of 52220216 in words is "fifty-two million, two hundred twenty thousand, two hundred sixteen".