105555525523 has 8 divisors (see below), whose sum is σ = 120654740480. Its totient is φ = 90461274120.

The previous prime is 105555525497. The next prime is 105555525557. The reversal of 105555525523 is 325525555501.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-105555525523 is a prime.

It is a super-2 number, since 2×105555525523² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 105555525523.

It is not an unprimeable number, because it can be changed into a prime (105555520523) 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, 1195203 + ... + 1280476.

It is an arithmetic number, because the mean of its divisors is an integer number (15081842560).

Almost surely, 2^105555525523 is an apocalyptic number.

105555525523 is a deficient number, since it is larger than the sum of its proper divisors (15099214957).

105555525523 is an equidigital number, since it uses as much as digits as its factorization.

105555525523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2481777.

The product of its (nonzero) digits is 937500, while the sum is 43.

The spelling of 105555525523 in words is "one hundred five billion, five hundred fifty-five million, five hundred twenty-five thousand, five hundred twenty-three".