105530250 has 64 divisors (see below), whose sum is σ = 301047552. Its totient is φ = 24120000.

The previous prime is 105530239. The next prime is 105530263. The reversal of 105530250 is 52035501.

It is a super-2 number, since 2×105530250² = 22273267330125000, which contains 22 as substring.

It is a hoax number, since the sum of its digits (21) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4801 + ... + 15300.

It is an arithmetic number, because the mean of its divisors is an integer number (4703868).

Almost surely, 2^105530250 is an apocalyptic number.

105530250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105530250 is an abundant number, since it is smaller than the sum of its proper divisors (195517302).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

105530250 is a wasteful number, since it uses less digits than its factorization.

105530250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20128 (or 20118 counting only the distinct ones).

The product of its (nonzero) digits is 750, while the sum is 21.

The square root of 105530250 is about 10272.7917335065. The cubic root of 105530250 is about 472.5622101119.

Adding to 105530250 its reverse (52035501), we get a palindrome (157565751).

The spelling of 105530250 in words is "one hundred five million, five hundred thirty thousand, two hundred fifty".