520771403 has 2 divisors, whose sum is σ = 520771404. Its totient is φ = 520771402.

The previous prime is 520771379. The next prime is 520771477. The reversal of 520771403 is 304177025.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 520771403 - 2¹⁰ = 520770379 is a prime.

It is not a weakly prime, because it can be changed into another prime (520771483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260385701 + 260385702.

It is an arithmetic number, because the mean of its divisors is an integer number (260385702).

Almost surely, 2^520771403 is an apocalyptic number.

520771403 is a deficient number, since it is larger than the sum of its proper divisors (1).

520771403 is an equidigital number, since it uses as much as digits as its factorization.

520771403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5880, while the sum is 29.

The square root of 520771403 is about 22820.4163634233. The cubic root of 520771403 is about 804.5425962650.

The spelling of 520771403 in words is "five hundred twenty million, seven hundred seventy-one thousand, four hundred three".