520213051 has 2 divisors, whose sum is σ = 520213052. Its totient is φ = 520213050.

The previous prime is 520213013. The next prime is 520213079. The reversal of 520213051 is 150312025.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-520213051 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (520213751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 260106525 + 260106526.

It is an arithmetic number, because the mean of its divisors is an integer number (260106526).

Almost surely, 2^520213051 is an apocalyptic number.

520213051 is a deficient number, since it is larger than the sum of its proper divisors (1).

520213051 is an equidigital number, since it uses as much as digits as its factorization.

520213051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 520213051 is about 22808.1794757933. The cubic root of 520213051 is about 804.2549597538.

Adding to 520213051 its reverse (150312025), we get a palindrome (670525076).

The spelling of 520213051 in words is "five hundred twenty million, two hundred thirteen thousand, fifty-one".