505505555051 has 12 divisors (see below), whose sum is σ = 618986395080. Its totient is φ = 410485713120.

The previous prime is 505505555041. The next prime is 505505555053. The reversal of 505505555051 is 150555505505.

It is not a de Polignac number, because 505505555051 - 2¹⁴ = 505505538667 is a prime.

It is a super-2 number, since 2×505505555051² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (505505555053) 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, 271484330 + ... + 271486191.

It is an arithmetic number, because the mean of its divisors is an integer number (51582199590).

Almost surely, 2^505505555051 is an apocalyptic number.

505505555051 is a deficient number, since it is larger than the sum of its proper divisors (113480840029).

505505555051 is a wasteful number, since it uses less digits than its factorization.

505505555051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542970554 (or 542970547 counting only the distinct ones).

The product of its (nonzero) digits is 390625, while the sum is 41.

The spelling of 505505555051 in words is "five hundred five billion, five hundred five million, five hundred fifty-five thousand, fifty-one".