57220535893 has 4 divisors (see below), whose sum is σ = 57221918380. Its totient is φ = 57219153408.

The previous prime is 57220535873. The next prime is 57220535903. The reversal of 57220535893 is 39853502275.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 28258282404 + 28962253489 = 168102^2 + 170183^2 .

It is a cyclic number.

It is not a de Polignac number, because 57220535893 - 2²¹ = 57218438741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57220535843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627180 + ... + 712597.

It is an arithmetic number, because the mean of its divisors is an integer number (14305479595).

Almost surely, 2^57220535893 is an apocalyptic number.

It is an amenable number.

57220535893 is a deficient number, since it is larger than the sum of its proper divisors (1382487).

57220535893 is a wasteful number, since it uses less digits than its factorization.

57220535893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1382486.

The product of its (nonzero) digits is 2268000, while the sum is 49.

The spelling of 57220535893 in words is "fifty-seven billion, two hundred twenty million, five hundred thirty-five thousand, eight hundred ninety-three".