505236613323 has 16 divisors (see below), whose sum is σ = 726545956640. Its totient is φ = 310452839424.

The previous prime is 505236613313. The next prime is 505236613327. The reversal of 505236613323 is 323316632505.

It is a happy number.

It is not a de Polignac number, because 505236613323 - 2¹⁷ = 505236482251 is a prime.

It is a super-2 number, since 2×505236613323² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (505236613327) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9598408 + ... + 9650901.

It is an arithmetic number, because the mean of its divisors is an integer number (45409122290).

Almost surely, 2^505236613323 is an apocalyptic number.

505236613323 is a deficient number, since it is larger than the sum of its proper divisors (221309343317).

505236613323 is a wasteful number, since it uses less digits than its factorization.

505236613323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19249998.

The product of its (nonzero) digits is 291600, while the sum is 39.

The spelling of 505236613323 in words is "five hundred five billion, two hundred thirty-six million, six hundred thirteen thousand, three hundred twenty-three".