57056227509 has 16 divisors (see below), whose sum is σ = 83327555520. Its totient is φ = 34565502720.

The previous prime is 57056227499. The next prime is 57056227589. The reversal of 57056227509 is 90572265075.

It is not a de Polignac number, because 57056227509 - 2⁴ = 57056227493 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57056227589) 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 15 ways as a sum of consecutive naturals, for example, 19287307 + ... + 19290264.

It is an arithmetic number, because the mean of its divisors is an integer number (5207972220).

Almost surely, 2^57056227509 is an apocalyptic number.

It is an amenable number.

57056227509 is a deficient number, since it is larger than the sum of its proper divisors (26271328011).

57056227509 is a wasteful number, since it uses less digits than its factorization.

57056227509 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38577620.

The product of its (nonzero) digits is 1323000, while the sum is 48.

The spelling of 57056227509 in words is "fifty-seven billion, fifty-six million, two hundred twenty-seven thousand, five hundred nine".