505555050510 has 64 divisors (see below), whose sum is σ = 1406761896960. Its totient is φ = 128953170720.

The previous prime is 505555050509. The next prime is 505555050541. The reversal of 505555050510 is 15050555505.

It is a happy number.

505555050510 is a `hidden beast` number, since 5 + 0 + 5 + 5 + 550 + 50 + 51 + 0 = 666.

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, 40698706 + ... + 40711125.

It is an arithmetic number, because the mean of its divisors is an integer number (21980654640).

Almost surely, 2^505555050510 is an apocalyptic number.

505555050510 is an abundant number, since it is smaller than the sum of its proper divisors (901206846450).

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

505555050510 is a wasteful number, since it uses less digits than its factorization.

505555050510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81409870 (or 81409864 counting only the distinct ones).

The product of its (nonzero) digits is 78125, while the sum is 36.

The spelling of 505555050510 in words is "five hundred five billion, five hundred fifty-five million, fifty thousand, five hundred ten".