511223224255 has 4 divisors (see below), whose sum is σ = 613467869112. Its totient is φ = 408978579400.

The previous prime is 511223224241. The next prime is 511223224277. The reversal of 511223224255 is 552422322115.

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

It is not a de Polignac number, because 511223224255 - 2¹⁵ = 511223191487 is a prime.

It is a super-2 number, since 2×511223224255² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 511223224255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51122322421 + ... + 51122322430.

It is an arithmetic number, because the mean of its divisors is an integer number (153366967278).

Almost surely, 2^511223224255 is an apocalyptic number.

511223224255 is a deficient number, since it is larger than the sum of its proper divisors (102244644857).

511223224255 is a wasteful number, since it uses less digits than its factorization.

511223224255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102244644856.

The product of its digits is 48000, while the sum is 34.

The spelling of 511223224255 in words is "five hundred eleven billion, two hundred twenty-three million, two hundred twenty-four thousand, two hundred fifty-five".