505213110061 has 16 divisors (see below), whose sum is σ = 559255219200. Its totient is φ = 452546967600.

The previous prime is 505213110041. The next prime is 505213110067. The reversal of 505213110061 is 160011312505.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 505213110061 - 2¹¹ = 505213108013 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 (505213110067) 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, 165351 + ... + 1018708.

It is an arithmetic number, because the mean of its divisors is an integer number (34953451200).

Almost surely, 2^505213110061 is an apocalyptic number.

It is an amenable number.

505213110061 is a deficient number, since it is larger than the sum of its proper divisors (54042109139).

505213110061 is a wasteful number, since it uses less digits than its factorization.

505213110061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1184640.

The product of its (nonzero) digits is 900, while the sum is 25.

Adding to 505213110061 its reverse (160011312505), we get a palindrome (665224422566).

The spelling of 505213110061 in words is "five hundred five billion, two hundred thirteen million, one hundred ten thousand, sixty-one".