520674901 has 2 divisors, whose sum is σ = 520674902. Its totient is φ = 520674900.

The previous prime is 520674893. The next prime is 520674907. The reversal of 520674901 is 109476025.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 375351876 + 145323025 = 19374^2 + 12055^2 .

It is a cyclic number.

It is not a de Polignac number, because 520674901 - 2³ = 520674893 is a prime.

It is a super-2 number, since 2×520674901² = 542204705062719602, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520674907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260337450 + 260337451.

It is an arithmetic number, because the mean of its divisors is an integer number (260337451).

Almost surely, 2^520674901 is an apocalyptic number.

It is an amenable number.

520674901 is a deficient number, since it is larger than the sum of its proper divisors (1).

520674901 is an equidigital number, since it uses as much as digits as its factorization.

520674901 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 520674901 is about 22818.3018868627. The cubic root of 520674901 is about 804.4928977054.

The spelling of 520674901 in words is "five hundred twenty million, six hundred seventy-four thousand, nine hundred one".