105521650 has 48 divisors (see below), whose sum is σ = 214611264. Its totient is φ = 38364480.

The previous prime is 105521641. The next prime is 105521653. The reversal of 105521650 is 56125501.

It is a super-2 number, since 2×105521650² = 22269637237445000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (105521653) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42339 + ... + 44761.

It is an arithmetic number, because the mean of its divisors is an integer number (4471068).

Almost surely, 2^105521650 is an apocalyptic number.

105521650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

105521650 is an abundant number, since it is smaller than the sum of its proper divisors (109089614).

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

105521650 is a wasteful number, since it uses less digits than its factorization.

105521650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2515 (or 2510 counting only the distinct ones).

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 105521650 is about 10272.3731435341. The cubic root of 105521650 is about 472.5493728910.

The spelling of 105521650 in words is "one hundred five million, five hundred twenty-one thousand, six hundred fifty".