505506265722 has 64 divisors (see below), whose sum is σ = 1157195030400. Its totient is φ = 163452453120.

The previous prime is 505506265721. The next prime is 505506265741. The reversal of 505506265722 is 227562605505.

505506265722 is a `hidden beast` number, since 5 + 0 + 5 + 50 + 6 + 26 + 572 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (505506265721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279154 + ... + 1043522.

It is an arithmetic number, because the mean of its divisors is an integer number (18081172350).

Almost surely, 2^505506265722 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 505506265722, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (578597515200).

505506265722 is an abundant number, since it is smaller than the sum of its proper divisors (651688764678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505506265722 is a wasteful number, since it uses less digits than its factorization.

505506265722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 764748 (or 764742 counting only the distinct ones).

The product of its (nonzero) digits is 1260000, while the sum is 45.

The spelling of 505506265722 in words is "five hundred five billion, five hundred six million, two hundred sixty-five thousand, seven hundred twenty-two".