57221647133 has 6 divisors (see below), whose sum is σ = 66563956926. Its totient is φ = 49047126072.

The previous prime is 57221647121. The next prime is 57221647181. The reversal of 57221647133 is 33174612275.

It is a happy number.

57221647133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 46344617284 + 10877029849 = 215278^2 + 104293^2 .

It is not a de Polignac number, because 57221647133 - 2⁴ = 57221647117 is a prime.

It is a super-2 number, since 2×57221647133² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57221647033) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 583894310 + ... + 583894407.

It is an arithmetic number, because the mean of its divisors is an integer number (11093992821).

Almost surely, 2^57221647133 is an apocalyptic number.

It is an amenable number.

57221647133 is a deficient number, since it is larger than the sum of its proper divisors (9342309793).

57221647133 is a wasteful number, since it uses less digits than its factorization.

57221647133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1167788731 (or 1167788724 counting only the distinct ones).

The product of its digits is 211680, while the sum is 41.

The spelling of 57221647133 in words is "fifty-seven billion, two hundred twenty-one million, six hundred forty-seven thousand, one hundred thirty-three".