505449765652 has 96 divisors (see below), whose sum is σ = 1028415739680. Its totient is φ = 215273963520.

The previous prime is 505449765589. The next prime is 505449765661. The reversal of 505449765652 is 256567944505.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 356975180676 + 148474584976 = 597474^2 + 385324^2 .

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, 17079124 + ... + 17108692.

It is an arithmetic number, because the mean of its divisors is an integer number (10712663955).

Almost surely, 2^505449765652 is an apocalyptic number.

505449765652 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

505449765652 is an abundant number, since it is smaller than the sum of its proper divisors (522965974028).

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

505449765652 is a wasteful number, since it uses less digits than its factorization.

505449765652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29981 (or 29979 counting only the distinct ones).

The product of its (nonzero) digits is 45360000, while the sum is 58.

The spelling of 505449765652 in words is "five hundred five billion, four hundred forty-nine million, seven hundred sixty-five thousand, six hundred fifty-two".