505055051 has 6 divisors (see below), whose sum is σ = 513474156. Its totient is φ = 496771800.

The previous prime is 505055009. The next prime is 505055053. The reversal of 505055051 is 150550505.

It is a de Polignac number, because none of the positive numbers 2^k-505055051 is a prime.

It is a super-2 number, since 2×505055051² = 510161209081225202, which contains 22 as substring.

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 505055051.

It is not an unprimeable number, because it can be changed into a prime (505055053) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64145 + ... + 71586.

It is an arithmetic number, because the mean of its divisors is an integer number (85579026).

Almost surely, 2^505055051 is an apocalyptic number.

505055051 is a deficient number, since it is larger than the sum of its proper divisors (8419105).

505055051 is an equidigital number, since it uses as much as digits as its factorization.

505055051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135853 (or 135792 counting only the distinct ones).

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

The square root of 505055051 is about 22473.4298895384. The cubic root of 505055051 is about 796.3663598744.

The spelling of 505055051 in words is "five hundred five million, fifty-five thousand, fifty-one".