57531611 has 2 divisors, whose sum is σ = 57531612. Its totient is φ = 57531610.

The previous prime is 57531599. The next prime is 57531623. The reversal of 57531611 is 11613575.

It is a balanced prime because it is at equal distance from previous prime (57531599) and next prime (57531623).

It is a cyclic number.

It is not a de Polignac number, because 57531611 - 2¹⁸ = 57269467 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57531641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28765805 + 28765806.

It is an arithmetic number, because the mean of its divisors is an integer number (28765806).

Almost surely, 2^57531611 is an apocalyptic number.

57531611 is a deficient number, since it is larger than the sum of its proper divisors (1).

57531611 is an equidigital number, since it uses as much as digits as its factorization.

57531611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3150, while the sum is 29.

The square root of 57531611 is about 7584.9595252710. The cubic root of 57531611 is about 386.0428487427.

The spelling of 57531611 in words is "fifty-seven million, five hundred thirty-one thousand, six hundred eleven".