57161933 has 2 divisors, whose sum is σ = 57161934. Its totient is φ = 57161932.

The previous prime is 57161911. The next prime is 57161959. The reversal of 57161933 is 33916175.

57161933 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 can be written as a sum of positive squares in only one way, i.e., 36929929 + 20232004 = 6077^2 + 4498^2 .

It is a cyclic number.

It is not a de Polignac number, because 57161933 - 2¹⁴ = 57145549 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 57161893 and 57161902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57161963) 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, 28580966 + 28580967.

It is an arithmetic number, because the mean of its divisors is an integer number (28580967).

Almost surely, 2^57161933 is an apocalyptic number.

It is an amenable number.

57161933 is a deficient number, since it is larger than the sum of its proper divisors (1).

57161933 is an equidigital number, since it uses as much as digits as its factorization.

57161933 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 17010, while the sum is 35.

The square root of 57161933 is about 7560.5511042516. The cubic root of 57161933 is about 385.2142126061.

The spelling of 57161933 in words is "fifty-seven million, one hundred sixty-one thousand, nine hundred thirty-three".