520203667 has 2 divisors, whose sum is σ = 520203668. Its totient is φ = 520203666.

The previous prime is 520203623. The next prime is 520203701. The reversal of 520203667 is 766302025.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520203667 is a prime.

It is a super-2 number, since 2×520203667² = 541223710320493778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (520203617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260101833 + 260101834.

It is an arithmetic number, because the mean of its divisors is an integer number (260101834).

Almost surely, 2^520203667 is an apocalyptic number.

520203667 is a deficient number, since it is larger than the sum of its proper divisors (1).

520203667 is an equidigital number, since it uses as much as digits as its factorization.

520203667 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 31.

The square root of 520203667 is about 22807.9737591922. The cubic root of 520203667 is about 804.2501238031.

The spelling of 520203667 in words is "five hundred twenty million, two hundred three thousand, six hundred sixty-seven".