512218079 has 4 divisors (see below), whose sum is σ = 523116384. Its totient is φ = 501319776.

The previous prime is 512218061. The next prime is 512218081. The reversal of 512218079 is 970812215.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970812215 = 5 ⋅194162443.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512218079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (512218379) 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, 5449082 + ... + 5449175.

It is an arithmetic number, because the mean of its divisors is an integer number (130779096).

Almost surely, 2^512218079 is an apocalyptic number.

512218079 is a deficient number, since it is larger than the sum of its proper divisors (10898305).

512218079 is a wasteful number, since it uses less digits than its factorization.

512218079 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10898304.

The product of its (nonzero) digits is 10080, while the sum is 35.

The square root of 512218079 is about 22632.2353955591. The cubic root of 512218079 is about 800.1135666900.

The spelling of 512218079 in words is "five hundred twelve million, two hundred eighteen thousand, seventy-nine".