505550101 has 16 divisors (see below), whose sum is σ = 591606400. Its totient is φ = 431827200.

The previous prime is 505550099. The next prime is 505550153. The reversal of 505550101 is 101055505.

It is not a de Polignac number, because 505550101 - 2¹ = 505550099 is a prime.

It is a super-2 number, since 2×505550101² = 511161809242220402, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505550161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102901 + ... + 107701.

It is an arithmetic number, because the mean of its divisors is an integer number (36975400).

Almost surely, 2^505550101 is an apocalyptic number.

It is an amenable number.

505550101 is a deficient number, since it is larger than the sum of its proper divisors (86056299).

505550101 is an equidigital number, since it uses as much as digits as its factorization.

505550101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5129 (or 5115 counting only the distinct ones).

The product of its (nonzero) digits is 625, while the sum is 22.

The square root of 505550101 is about 22484.4413094922. The cubic root of 505550101 is about 796.6264717344.

The spelling of 505550101 in words is "five hundred five million, five hundred fifty thousand, one hundred one".