512720279 has 2 divisors, whose sum is σ = 512720280. Its totient is φ = 512720278.

The previous prime is 512720239. The next prime is 512720291. The reversal of 512720279 is 972027215.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512720279 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (512720239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 256360139 + 256360140.

It is an arithmetic number, because the mean of its divisors is an integer number (256360140).

Almost surely, 2^512720279 is an apocalyptic number.

512720279 is a deficient number, since it is larger than the sum of its proper divisors (1).

512720279 is an equidigital number, since it uses as much as digits as its factorization.

512720279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 512720279 is about 22643.3274719066. The cubic root of 512720279 is about 800.3749695324.

The spelling of 512720279 in words is "five hundred twelve million, seven hundred twenty thousand, two hundred seventy-nine".