52216628 has 12 divisors (see below), whose sum is σ = 92480640. Its totient is φ = 25793592.

The previous prime is 52216609. The next prime is 52216631. The reversal of 52216628 is 82661225.

It is a junction number, because it is equal to n+sod(n) for n = 52216594 and 52216603.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 78308 + ... + 78971.

It is an arithmetic number, because the mean of its divisors is an integer number (7706720).

Almost surely, 2^52216628 is an apocalyptic number.

It is an amenable number.

52216628 is a deficient number, since it is larger than the sum of its proper divisors (40264012).

52216628 is a wasteful number, since it uses less digits than its factorization.

52216628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157366 (or 157364 counting only the distinct ones).

The product of its digits is 11520, while the sum is 32.

The square root of 52216628 is about 7226.1073891826. The cubic root of 52216628 is about 373.7687094060.

The spelling of 52216628 in words is "fifty-two million, two hundred sixteen thousand, six hundred twenty-eight".