505364056261 has 16 divisors (see below), whose sum is σ = 530703360000. Its totient is φ = 480595690800.

The previous prime is 505364056207. The next prime is 505364056271. The reversal of 505364056261 is 162650463505.

It is not a de Polignac number, because 505364056261 - 2²³ = 505355667653 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 (505364056271) 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, 5055240 + ... + 5154238.

It is an arithmetic number, because the mean of its divisors is an integer number (33168960000).

Almost surely, 2^505364056261 is an apocalyptic number.

It is an amenable number.

505364056261 is a deficient number, since it is larger than the sum of its proper divisors (25339303739).

505364056261 is a wasteful number, since it uses less digits than its factorization.

505364056261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101880.

The product of its (nonzero) digits is 648000, while the sum is 43.

The spelling of 505364056261 in words is "five hundred five billion, three hundred sixty-four million, fifty-six thousand, two hundred sixty-one".