511772323 has 4 divisors (see below), whose sum is σ = 511948008. Its totient is φ = 511596640.

The previous prime is 511772299. The next prime is 511772341. The reversal of 511772323 is 323277115.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 511772323 - 2⁹ = 511771811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (511772363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83398 + ... + 89323.

It is an arithmetic number, because the mean of its divisors is an integer number (127987002).

Almost surely, 2^511772323 is an apocalyptic number.

511772323 is a deficient number, since it is larger than the sum of its proper divisors (175685).

511772323 is a wasteful number, since it uses less digits than its factorization.

511772323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175684.

The product of its digits is 8820, while the sum is 31.

The square root of 511772323 is about 22622.3854400901. The cubic root of 511772323 is about 799.8814006478.

The spelling of 511772323 in words is "five hundred eleven million, seven hundred seventy-two thousand, three hundred twenty-three".