57006216 has 48 divisors (see below), whose sum is σ = 154954800. Its totient is φ = 18932832.

The previous prime is 57006197. The next prime is 57006239. The reversal of 57006216 is 61260075.

It is a self number, because there is not a number n which added to its sum of digits gives 57006216.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20815 + ... + 23393.

It is an arithmetic number, because the mean of its divisors is an integer number (3228225).

Almost surely, 2^57006216 is an apocalyptic number.

It is an amenable number.

57006216 is an abundant number, since it is smaller than the sum of its proper divisors (97948584).

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

57006216 is a wasteful number, since it uses less digits than its factorization.

57006216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2898 (or 2891 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 57006216 is about 7550.2460887047. The cubic root of 57006216 is about 384.8641022584.

The spelling of 57006216 in words is "fifty-seven million, six thousand, two hundred sixteen".