505505051 has 12 divisors (see below), whose sum is σ = 534466800. Its totient is φ = 478042128.

The previous prime is 505505041. The next prime is 505505083. The reversal of 505505051 is 150505505.

It is a de Polignac number, because none of the positive numbers 2^k-505505051 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 505505051.

It is not an unprimeable number, because it can be changed into a prime (505505041) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 302045 + ... + 303713.

It is an arithmetic number, because the mean of its divisors is an integer number (44538900).

Almost surely, 2^505505051 is an apocalyptic number.

505505051 is a deficient number, since it is larger than the sum of its proper divisors (28961749).

505505051 is a wasteful number, since it uses less digits than its factorization.

505505051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2546 (or 2527 counting only the distinct ones).

The product of its (nonzero) digits is 3125, while the sum is 26.

The square root of 505505051 is about 22483.4394833175. The cubic root of 505505051 is about 796.6028083437.

The spelling of 505505051 in words is "five hundred five million, five hundred five thousand, fifty-one".