56620216 has 8 divisors (see below), whose sum is σ = 106162920. Its totient is φ = 28310104.

The previous prime is 56620211. The next prime is 56620219. The reversal of 56620216 is 61202665.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (56620211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3538756 + ... + 3538771.

It is an arithmetic number, because the mean of its divisors is an integer number (13270365).

Almost surely, 2^56620216 is an apocalyptic number.

It is an amenable number.

56620216 is a deficient number, since it is larger than the sum of its proper divisors (49542704).

56620216 is a wasteful number, since it uses less digits than its factorization.

56620216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7077533 (or 7077529 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 56620216 is about 7524.6405894235. The cubic root of 56620216 is about 383.9934713878.

The spelling of 56620216 in words is "fifty-six million, six hundred twenty thousand, two hundred sixteen".