105520878 has 24 divisors (see below), whose sum is σ = 229290048. Its totient is φ = 35071872.

The previous prime is 105520873. The next prime is 105520897. The reversal of 105520878 is 878025501.

It is a super-2 number, since 2×105520878² = 22269311387781768, which contains 22 as substring.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (105520873) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1950 + ... + 14657.

It is an arithmetic number, because the mean of its divisors is an integer number (9553752).

Almost surely, 2^105520878 is an apocalyptic number.

105520878 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

105520878 is an abundant number, since it is smaller than the sum of its proper divisors (123769170).

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

105520878 is a wasteful number, since it uses less digits than its factorization.

105520878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16968 (or 16965 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 36.

The square root of 105520878 is about 10272.3355669487. The cubic root of 105520878 is about 472.5482204924.

The spelling of 105520878 in words is "one hundred five million, five hundred twenty thousand, eight hundred seventy-eight".