512404555213 has 4 divisors (see below), whose sum is σ = 523306779840. Its totient is φ = 501502330588.

The previous prime is 512404555211. The next prime is 512404555237. The reversal of 512404555213 is 312555404215.

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, and also an emirpimes, since its reverse is a distinct semiprime: 312555404215 = 5 ⋅62511080843.

It is a cyclic number.

It is not a de Polignac number, because 512404555213 - 2¹ = 512404555211 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 (512404555211) 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, 5451112243 + ... + 5451112336.

It is an arithmetic number, because the mean of its divisors is an integer number (130826694960).

Almost surely, 2^512404555213 is an apocalyptic number.

It is an amenable number.

512404555213 is a deficient number, since it is larger than the sum of its proper divisors (10902224627).

512404555213 is a wasteful number, since it uses less digits than its factorization.

512404555213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10902224626.

The product of its (nonzero) digits is 120000, while the sum is 37.

Adding to 512404555213 its reverse (312555404215), we get a palindrome (824959959428).

The spelling of 512404555213 in words is "five hundred twelve billion, four hundred four million, five hundred fifty-five thousand, two hundred thirteen".