57081433 has 2 divisors, whose sum is σ = 57081434. Its totient is φ = 57081432.

The previous prime is 57081419. The next prime is 57081439. The reversal of 57081433 is 33418075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 34727449 + 22353984 = 5893^2 + 4728^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57081433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57081395 and 57081404.

It is not a weakly prime, because it can be changed into another prime (57081439) 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 as a sum of consecutive naturals, namely, 28540716 + 28540717.

It is an arithmetic number, because the mean of its divisors is an integer number (28540717).

Almost surely, 2^57081433 is an apocalyptic number.

It is an amenable number.

57081433 is a deficient number, since it is larger than the sum of its proper divisors (1).

57081433 is an equidigital number, since it uses as much as digits as its factorization.

57081433 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 57081433 is about 7555.2255426294. The cubic root of 57081433 is about 385.0332978453.

The spelling of 57081433 in words is "fifty-seven million, eighty-one thousand, four hundred thirty-three".