505550105501 has 8 divisors (see below), whose sum is σ = 578273531904. Its totient is φ = 432952174800.

The previous prime is 505550105447. The next prime is 505550105513. The reversal of 505550105501 is 105501055505.

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 505550105501 - 2²² = 505545911197 is a prime.

It is a super-2 number, since 2×505550105501² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505550105531) 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, 31365290 + ... + 31381403.

It is an arithmetic number, because the mean of its divisors is an integer number (72284191488).

Almost surely, 2^505550105501 is an apocalyptic number.

It is an amenable number.

505550105501 is a deficient number, since it is larger than the sum of its proper divisors (72723426403).

505550105501 is a wasteful number, since it uses less digits than its factorization.

505550105501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62747851.

The product of its (nonzero) digits is 15625, while the sum is 32.

The spelling of 505550105501 in words is "five hundred five billion, five hundred fifty million, one hundred five thousand, five hundred one".