505049555 has 4 divisors (see below), whose sum is σ = 606059472. Its totient is φ = 404039640.

The previous prime is 505049539. The next prime is 505049569. The reversal of 505049555 is 555940505.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 505049555 - 2⁴ = 505049539 is a prime.

It is a Duffinian number.

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, 50504951 + ... + 50504960.

It is an arithmetic number, because the mean of its divisors is an integer number (151514868).

Almost surely, 2^505049555 is an apocalyptic number.

505049555 is a deficient number, since it is larger than the sum of its proper divisors (101009917).

505049555 is a wasteful number, since it uses less digits than its factorization.

505049555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101009916.

The product of its (nonzero) digits is 112500, while the sum is 38.

The square root of 505049555 is about 22473.3076114754. The cubic root of 505049555 is about 796.3634711824.

The spelling of 505049555 in words is "five hundred five million, forty-nine thousand, five hundred fifty-five".