527315993 has 2 divisors, whose sum is σ = 527315994. Its totient is φ = 527315992.

The previous prime is 527315947. The next prime is 527316017. The reversal of 527315993 is 399513725.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 411602944 + 115713049 = 20288^2 + 10757^2 .

It is a cyclic number.

It is not a de Polignac number, because 527315993 - 2²² = 523121689 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (527315933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 263657996 + 263657997.

It is an arithmetic number, because the mean of its divisors is an integer number (263657997).

Almost surely, 2^527315993 is an apocalyptic number.

It is an amenable number.

527315993 is a deficient number, since it is larger than the sum of its proper divisors (1).

527315993 is an equidigital number, since it uses as much as digits as its factorization.

527315993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 255150, while the sum is 44.

The square root of 527315993 is about 22963.3619707568. The cubic root of 527315993 is about 807.8988335459.

The spelling of 527315993 in words is "five hundred twenty-seven million, three hundred fifteen thousand, nine hundred ninety-three".