105520385 has 8 divisors (see below), whose sum is σ = 126912960. Its totient is φ = 84223984.

The previous prime is 105520381. The next prime is 105520391. The reversal of 105520385 is 583025501.

105520385 = 250² + 251² + ... + 692².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 105520385 - 2² = 105520381 is a prime.

It is a super-2 number, since 2×105520385² = 22269103301096450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (105520381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21605 + ... + 26034.

It is an arithmetic number, because the mean of its divisors is an integer number (15864120).

Almost surely, 2^105520385 is an apocalyptic number.

It is an amenable number.

105520385 is a deficient number, since it is larger than the sum of its proper divisors (21392575).

105520385 is an equidigital number, since it uses as much as digits as its factorization.

105520385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48087.

The product of its (nonzero) digits is 6000, while the sum is 29.

The square root of 105520385 is about 10272.3115704305. The cubic root of 105520385 is about 472.5474845665.

Adding to 105520385 its reverse (583025501), we get a palindrome (688545886).

The spelling of 105520385 in words is "one hundred five million, five hundred twenty thousand, three hundred eighty-five".