9911000050 has 48 divisors (see below), whose sum is σ = 21364739712. Its totient is φ = 3350188800.

The previous prime is 9911000041. The next prime is 9911000089. The reversal of 9911000050 is 500001199.

It is a super-2 number, since 2×9911000050² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a junction number, because it is equal to n+sod(n) for n = 9910999979 and 9911000024.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 174567 + ... + 224266.

It is an arithmetic number, because the mean of its divisors is an integer number (445098744).

Almost surely, 2^9911000050 is an apocalyptic number.

9911000050 is an abundant number, since it is smaller than the sum of its proper divisors (11453739662).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9911000050 is a wasteful number, since it uses less digits than its factorization.

9911000050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398923 (or 398918 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 25.

The square root of 9911000050 is about 99554.0056954013. The cubic root of 9911000050 is about 2148.0241483309.

The spelling of 9911000050 in words is "nine billion, nine hundred eleven million, fifty", and thus it is an aban number.