505455005556 has 72 divisors (see below), whose sum is σ = 1295382408320. Its totient is φ = 166151067264.

The previous prime is 505455005519. The next prime is 505455005563. The reversal of 505455005556 is 655500554505.

505455005556 is a `hidden beast` number, since 5 + 0 + 5 + 45 + 50 + 0 + 5 + 556 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24385365 + ... + 24406083.

Almost surely, 2^505455005556 is an apocalyptic number.

It is an amenable number.

505455005556 is an abundant number, since it is smaller than the sum of its proper divisors (789927402764).

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

505455005556 is a wasteful number, since it uses less digits than its factorization.

505455005556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30085 (or 30080 counting only the distinct ones).

The product of its (nonzero) digits is 1875000, while the sum is 45.

The spelling of 505455005556 in words is "five hundred five billion, four hundred fifty-five million, five thousand, five hundred fifty-six".