531662011 has 2 divisors, whose sum is σ = 531662012. Its totient is φ = 531662010.

The previous prime is 531661981. The next prime is 531662023. The reversal of 531662011 is 110266135.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 531662011 - 2¹⁷ = 531530939 is a prime.

It is not a weakly prime, because it can be changed into another prime (531662611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 265831005 + 265831006.

It is an arithmetic number, because the mean of its divisors is an integer number (265831006).

Almost surely, 2^531662011 is an apocalyptic number.

531662011 is a deficient number, since it is larger than the sum of its proper divisors (1).

531662011 is an equidigital number, since it uses as much as digits as its factorization.

531662011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 25.

The square root of 531662011 is about 23057.7971844667. The cubic root of 531662011 is about 810.1122696589.

The spelling of 531662011 in words is "five hundred thirty-one million, six hundred sixty-two thousand, eleven".