520214887 has 2 divisors, whose sum is σ = 520214888. Its totient is φ = 520214886.

The previous prime is 520214873. The next prime is 520214899. The reversal of 520214887 is 788412025.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520214887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (520214837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260107443 + 260107444.

It is an arithmetic number, because the mean of its divisors is an integer number (260107444).

Almost surely, 2^520214887 is an apocalyptic number.

520214887 is a deficient number, since it is larger than the sum of its proper divisors (1).

520214887 is an equidigital number, since it uses as much as digits as its factorization.

520214887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 520214887 is about 22808.2197244765. The cubic root of 520214887 is about 804.2559059113.

The spelling of 520214887 in words is "five hundred twenty million, two hundred fourteen thousand, eight hundred eighty-seven".