505505500072 has 16 divisors (see below), whose sum is σ = 965706262740. Its totient is φ = 247983830016.

The previous prime is 505505500063. The next prime is 505505500187. The reversal of 505505500072 is 270005505505.

It can be written as a sum of positive squares in 2 ways, for example, as 484825334436 + 20680165636 = 696294^2 + 143806^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 596114553 + ... + 596115400.

Almost surely, 2^505505500072 is an apocalyptic number.

It is an amenable number.

505505500072 is a deficient number, since it is larger than the sum of its proper divisors (460200762668).

505505500072 is a wasteful number, since it uses less digits than its factorization.

505505500072 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192230012 (or 1192230008 counting only the distinct ones).

The product of its (nonzero) digits is 43750, while the sum is 34.

The spelling of 505505500072 in words is "five hundred five billion, five hundred five million, five hundred thousand, seventy-two".