505056101 has 8 divisors (see below), whose sum is σ = 551229600. Its totient is φ = 458925840.

The previous prime is 505056091. The next prime is 505056109. The reversal of 505056101 is 101650505.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 505056101 - 2⁶ = 505056037 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505056109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16670 + ... + 35888.

It is an arithmetic number, because the mean of its divisors is an integer number (68903700).

Almost surely, 2^505056101 is an apocalyptic number.

It is an amenable number.

505056101 is a deficient number, since it is larger than the sum of its proper divisors (46173499).

505056101 is a wasteful number, since it uses less digits than its factorization.

505056101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21619.

The product of its (nonzero) digits is 750, while the sum is 23.

The square root of 505056101 is about 22473.4532504464. The cubic root of 505056101 is about 796.3669117509.

The spelling of 505056101 in words is "five hundred five million, fifty-six thousand, one hundred one".