520292081 has 2 divisors, whose sum is σ = 520292082. Its totient is φ = 520292080.

The previous prime is 520292053. The next prime is 520292099. The reversal of 520292081 is 180292025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 449058481 + 71233600 = 21191^2 + 8440^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520292081 is a prime.

It is a super-2 number, since 2×520292081² = 541407699102621122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (520292011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260146040 + 260146041.

It is an arithmetic number, because the mean of its divisors is an integer number (260146041).

Almost surely, 2^520292081 is an apocalyptic number.

It is an amenable number.

520292081 is a deficient number, since it is larger than the sum of its proper divisors (1).

520292081 is an equidigital number, since it uses as much as digits as its factorization.

520292081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 29.

The square root of 520292081 is about 22809.9119025041. The cubic root of 520292081 is about 804.2956847676.

The spelling of 520292081 in words is "five hundred twenty million, two hundred ninety-two thousand, eighty-one".