57221445842 has 32 divisors (see below), whose sum is σ = 94375834560. Its totient is φ = 25804255680.

The previous prime is 57221445811. The next prime is 57221445863. The reversal of 57221445842 is 24854412275.

It is a junction number, because it is equal to n+sod(n) for n = 57221445793 and 57221445802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4877768 + ... + 4889484.

It is an arithmetic number, because the mean of its divisors is an integer number (2949244830).

Almost surely, 2^57221445842 is an apocalyptic number.

57221445842 is a deficient number, since it is larger than the sum of its proper divisors (37154388718).

57221445842 is a wasteful number, since it uses less digits than its factorization.

57221445842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13466.

The product of its digits is 716800, while the sum is 44.

The spelling of 57221445842 in words is "fifty-seven billion, two hundred twenty-one million, four hundred forty-five thousand, eight hundred forty-two".