105272553 has 4 divisors (see below), whose sum is σ = 140363408. Its totient is φ = 70181700.

The previous prime is 105272549. The next prime is 105272561. The reversal of 105272553 is 355272501.

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 not a de Polignac number, because 105272553 - 2² = 105272549 is a prime.

It is a super-2 number, since 2×105272553² = 22164620830275618, which 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 105272553.

It is not an unprimeable number, because it can be changed into a prime (105272593) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17545423 + ... + 17545428.

It is an arithmetic number, because the mean of its divisors is an integer number (35090852).

Almost surely, 2^105272553 is an apocalyptic number.

It is an amenable number.

105272553 is a deficient number, since it is larger than the sum of its proper divisors (35090855).

105272553 is an equidigital number, since it uses as much as digits as its factorization.

105272553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35090854.

The product of its (nonzero) digits is 10500, while the sum is 30.

The square root of 105272553 is about 10260.2413714298. The cubic root of 105272553 is about 472.1772426967.

The spelling of 105272553 in words is "one hundred five million, two hundred seventy-two thousand, five hundred fifty-three".