57220340309 has 16 divisors (see below), whose sum is σ = 65712657024. Its totient is φ = 49316467200.

The previous prime is 57220340279. The next prime is 57220340311. The reversal of 57220340309 is 90304302275.

It is not a de Polignac number, because 57220340309 - 2³² = 52925373013 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (57220340809) 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, 972152 + ... + 1029329.

It is an arithmetic number, because the mean of its divisors is an integer number (4107041064).

Almost surely, 2^57220340309 is an apocalyptic number.

It is an amenable number.

57220340309 is a deficient number, since it is larger than the sum of its proper divisors (8492316715).

57220340309 is a wasteful number, since it uses less digits than its factorization.

57220340309 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2001628.

The product of its (nonzero) digits is 45360, while the sum is 35.

The spelling of 57220340309 in words is "fifty-seven billion, two hundred twenty million, three hundred forty thousand, three hundred nine".