10511100550 has 12 divisors (see below), whose sum is σ = 19550647116. Its totient is φ = 4204440200.

The previous prime is 10511100511. The next prime is 10511100553. The reversal of 10511100550 is 5500111501.

It is a happy number.

It is a super-2 number, since 2×10511100550² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10511100553) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 105110956 + ... + 105111055.

It is an arithmetic number, because the mean of its divisors is an integer number (1629220593).

Almost surely, 2^10511100550 is an apocalyptic number.

10511100550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10511100550 is a deficient number, since it is larger than the sum of its proper divisors (9039546566).

10511100550 is a wasteful number, since it uses less digits than its factorization.

10511100550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210222023 (or 210222018 counting only the distinct ones).

The product of its (nonzero) digits is 125, while the sum is 19.

The spelling of 10511100550 in words is "ten billion, five hundred eleven million, one hundred thousand, five hundred fifty".