57220282 has 8 divisors (see below), whose sum is σ = 98091936. Its totient is φ = 24522972.

The previous prime is 57220271. The next prime is 57220309. The reversal of 57220282 is 28202275.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 57220282.

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, 2043568 + ... + 2043595.

It is an arithmetic number, because the mean of its divisors is an integer number (12261492).

Almost surely, 2^57220282 is an apocalyptic number.

57220282 is a deficient number, since it is larger than the sum of its proper divisors (40871654).

57220282 is a wasteful number, since it uses less digits than its factorization.

57220282 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4087172.

The product of its (nonzero) digits is 4480, while the sum is 28.

The square root of 57220282 is about 7564.4088995770. The cubic root of 57220282 is about 385.3452393190.

The spelling of 57220282 in words is "fifty-seven million, two hundred twenty thousand, two hundred eighty-two".