520895093 has 2 divisors, whose sum is σ = 520895094. Its totient is φ = 520895092.

The previous prime is 520895057. The next prime is 520895117. The reversal of 520895093 is 390598025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 509991889 + 10903204 = 22583^2 + 3302^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520895093 is a prime.

It is a super-2 number, since 2×520895093² = 542663395822957298, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 520895093.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520895293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260447546 + 260447547.

It is an arithmetic number, because the mean of its divisors is an integer number (260447547).

Almost surely, 2^520895093 is an apocalyptic number.

It is an amenable number.

520895093 is a deficient number, since it is larger than the sum of its proper divisors (1).

520895093 is an equidigital number, since it uses as much as digits as its factorization.

520895093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 41.

The square root of 520895093 is about 22823.1262757756. The cubic root of 520895093 is about 804.6062876758.

The spelling of 520895093 in words is "five hundred twenty million, eight hundred ninety-five thousand, ninety-three".