57288131 has 2 divisors, whose sum is σ = 57288132. Its totient is φ = 57288130.

The previous prime is 57288107. The next prime is 57288139. The reversal of 57288131 is 13188275.

57288131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57288131 - 2⁶ = 57288067 is a prime.

It is a super-2 number, since 2×57288131² = 6563859906946322, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 57288091 and 57288100.

It is not a weakly prime, because it can be changed into another prime (57288139) 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, 28644065 + 28644066.

It is an arithmetic number, because the mean of its divisors is an integer number (28644066).

Almost surely, 2^57288131 is an apocalyptic number.

57288131 is a deficient number, since it is larger than the sum of its proper divisors (1).

57288131 is an equidigital number, since it uses as much as digits as its factorization.

57288131 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13440, while the sum is 35.

The square root of 57288131 is about 7568.8923231871. The cubic root of 57288131 is about 385.4974869784.

The spelling of 57288131 in words is "fifty-seven million, two hundred eighty-eight thousand, one hundred thirty-one".