57783331 has 2 divisors, whose sum is σ = 57783332. Its totient is φ = 57783330.

The previous prime is 57783329. The next prime is 57783347. The reversal of 57783331 is 13338775.

57783331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57783331 - 2¹ = 57783329 is a prime.

It is a super-2 number, since 2×57783331² = 6677826682911122, which contains 22 as substring.

Together with 57783329, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57783931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28891665 + 28891666.

It is an arithmetic number, because the mean of its divisors is an integer number (28891666).

Almost surely, 2^57783331 is an apocalyptic number.

57783331 is a deficient number, since it is larger than the sum of its proper divisors (1).

57783331 is an equidigital number, since it uses as much as digits as its factorization.

57783331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 57783331 is about 7601.5347792403. The cubic root of 57783331 is about 386.6050516996.

The spelling of 57783331 in words is "fifty-seven million, seven hundred eighty-three thousand, three hundred thirty-one".