105210255 has 16 divisors (see below), whose sum is σ = 168881760. Its totient is φ = 55930368.

The previous prime is 105210251. The next prime is 105210269. The reversal of 105210255 is 552012501.

It is not a de Polignac number, because 105210255 - 2² = 105210251 is a prime.

It is a super-2 number, since 2×105210255² = 22138395514330050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105210251) 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 15 ways as a sum of consecutive naturals, for example, 6510 + ... + 15899.

It is an arithmetic number, because the mean of its divisors is an integer number (10555110).

Almost surely, 2^105210255 is an apocalyptic number.

105210255 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

105210255 is a deficient number, since it is larger than the sum of its proper divisors (63671505).

105210255 is a wasteful number, since it uses less digits than its factorization.

105210255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22730.

The product of its (nonzero) digits is 500, while the sum is 21.

The square root of 105210255 is about 10257.2050286616. The cubic root of 105210255 is about 472.0840829209.

Adding to 105210255 its reverse (552012501), we get a palindrome (657222756).

The spelling of 105210255 in words is "one hundred five million, two hundred ten thousand, two hundred fifty-five".