500000561101 has 4 divisors (see below), whose sum is σ = 500367939804. Its totient is φ = 499633182400.

The previous prime is 500000561069. The next prime is 500000561107. The reversal of 500000561101 is 101165000005.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 193498813225 + 306501747876 = 439885^2 + 553626^2 .

It is a cyclic number.

It is not a de Polignac number, because 500000561101 - 2⁵ = 500000561069 is a prime.

It is a super-2 number, since 2×500000561101² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (500000561107) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 183687310 + ... + 183690031.

It is an arithmetic number, because the mean of its divisors is an integer number (125091984951).

Almost surely, 2^500000561101 is an apocalyptic number.

It is an amenable number.

500000561101 is a deficient number, since it is larger than the sum of its proper divisors (367378703).

500000561101 is a wasteful number, since it uses less digits than its factorization.

500000561101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367378702.

The product of its (nonzero) digits is 150, while the sum is 19.

Adding to 500000561101 its reverse (101165000005), we get a palindrome (601165561106).

The spelling of 500000561101 in words is "five hundred billion, five hundred sixty-one thousand, one hundred one".