105305154553 has 4 divisors (see below), whose sum is σ = 105306090228. Its totient is φ = 105304218880.

The previous prime is 105305154529. The next prime is 105305154557. The reversal of 105305154553 is 355451503501.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 355451503501 = 44579 ⋅7973519.

It can be written as a sum of positive squares in 2 ways, for example, as 12433811049 + 92871343504 = 111507^2 + 304748^2 .

It is a cyclic number.

It is not a de Polignac number, because 105305154553 - 2³³ = 96715219961 is a prime.

It is a super-2 number, since 2×105305154553² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (105305154557) 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, 271576 + ... + 533257.

It is an arithmetic number, because the mean of its divisors is an integer number (26326522557).

Almost surely, 2^105305154553 is an apocalyptic number.

It is an amenable number.

105305154553 is a deficient number, since it is larger than the sum of its proper divisors (935675).

105305154553 is an equidigital number, since it uses as much as digits as its factorization.

105305154553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 935674.

The product of its (nonzero) digits is 112500, while the sum is 37.

The spelling of 105305154553 in words is "one hundred five billion, three hundred five million, one hundred fifty-four thousand, five hundred fifty-three".