105485500253 has 4 divisors (see below), whose sum is σ = 120554857440. Its totient is φ = 90416143068.

The previous prime is 105485500213. The next prime is 105485500261. The reversal of 105485500253 is 352005584501.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-105485500253 is a prime.

It is a super-2 number, since 2×105485500253² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105485500213) 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, 7534678583 + ... + 7534678596.

It is an arithmetic number, because the mean of its divisors is an integer number (30138714360).

Almost surely, 2^105485500253 is an apocalyptic number.

It is an amenable number.

105485500253 is a deficient number, since it is larger than the sum of its proper divisors (15069357187).

105485500253 is an equidigital number, since it uses as much as digits as its factorization.

105485500253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15069357186.

The product of its (nonzero) digits is 120000, while the sum is 38.

The spelling of 105485500253 in words is "one hundred five billion, four hundred eighty-five million, five hundred thousand, two hundred fifty-three".