505212230405 has 32 divisors (see below), whose sum is σ = 620709868800. Its totient is φ = 394663491072.

The previous prime is 505212230363. The next prime is 505212230437. The reversal of 505212230405 is 504032212505.

It is a cyclic number.

It is not a de Polignac number, because 505212230405 - 2³² = 500917263109 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14944832 + ... + 14978598.

It is an arithmetic number, because the mean of its divisors is an integer number (19397183400).

Almost surely, 2^505212230405 is an apocalyptic number.

It is an amenable number.

505212230405 is a deficient number, since it is larger than the sum of its proper divisors (115497638395).

505212230405 is a wasteful number, since it uses less digits than its factorization.

505212230405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34253.

The product of its (nonzero) digits is 12000, while the sum is 29.

The spelling of 505212230405 in words is "five hundred five billion, two hundred twelve million, two hundred thirty thousand, four hundred five".