505560051 has 6 divisors (see below), whose sum is σ = 730253420. Its totient is φ = 337040028.

The previous prime is 505560049. The next prime is 505560061. The reversal of 505560051 is 150065505.

505560051 is a `hidden beast` number, since 5 + 0 + 5 + 5 + 600 + 51 = 666.

It is not a de Polignac number, because 505560051 - 2¹ = 505560049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 505559997 and 505560024.

It is not an unprimeable number, because it can be changed into a prime (505560031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 28086661 + ... + 28086678.

Almost surely, 2^505560051 is an apocalyptic number.

505560051 is a deficient number, since it is larger than the sum of its proper divisors (224693369).

505560051 is a wasteful number, since it uses less digits than its factorization.

505560051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56173345 (or 56173342 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 505560051 is about 22484.6625725182. The cubic root of 505560051 is about 796.6316979763.

The spelling of 505560051 in words is "five hundred five million, five hundred sixty thousand, fifty-one".