57221106 has 8 divisors (see below), whose sum is σ = 114442224. Its totient is φ = 19073700.

The previous prime is 57221081. The next prime is 57221183. The reversal of 57221106 is 60112275.

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

57221106 is an admirable number.

It is a Curzon 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, 4768420 + ... + 4768431.

It is an arithmetic number, because the mean of its divisors is an integer number (14305278).

Almost surely, 2^57221106 is an apocalyptic number.

57221106 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

57221106 is a wasteful number, since it uses less digits than its factorization.

57221106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9536856.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 57221106 is about 7564.4633649718. The cubic root of 57221106 is about 385.3470890300.

The spelling of 57221106 in words is "fifty-seven million, two hundred twenty-one thousand, one hundred six".