512426321 has 4 divisors (see below), whose sum is σ = 559010544. Its totient is φ = 465842100.

The previous prime is 512426309. The next prime is 512426377. The reversal of 512426321 is 123624215.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-512426321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (512428321) 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, 23292095 + ... + 23292116.

It is an arithmetic number, because the mean of its divisors is an integer number (139752636).

Almost surely, 2^512426321 is an apocalyptic number.

It is an amenable number.

512426321 is a deficient number, since it is larger than the sum of its proper divisors (46584223).

512426321 is a wasteful number, since it uses less digits than its factorization.

512426321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46584222.

The product of its digits is 2880, while the sum is 26.

The square root of 512426321 is about 22636.8354899708. The cubic root of 512426321 is about 800.2219805876.

The spelling of 512426321 in words is "five hundred twelve million, four hundred twenty-six thousand, three hundred twenty-one".