105305122550 has 12 divisors (see below), whose sum is σ = 195867528036. Its totient is φ = 42122049000.

The previous prime is 105305122529. The next prime is 105305122553. The reversal of 105305122550 is 55221503501.

It is a super-2 number, since 2×105305122550² (a number of 23 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (29) coincides with the sum of the digits of its distinct prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105305122553) 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, 1053051176 + ... + 1053051275.

It is an arithmetic number, because the mean of its divisors is an integer number (16322294003).

Almost surely, 2^105305122550 is an apocalyptic number.

105305122550 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105305122550 is a deficient number, since it is larger than the sum of its proper divisors (90562405486).

105305122550 is a wasteful number, since it uses less digits than its factorization.

105305122550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2106102463 (or 2106102458 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 29.

The spelling of 105305122550 in words is "one hundred five billion, three hundred five million, one hundred twenty-two thousand, five hundred fifty".