105523525 has 6 divisors (see below), whose sum is σ = 130849202. Its totient is φ = 84418800.

The previous prime is 105523501. The next prime is 105523541. The reversal of 105523525 is 525325501.

It can be written as a sum of positive squares in 3 ways, for example, as 35784324 + 69739201 = 5982^2 + 8351^2 .

It is not a de Polignac number, because 105523525 - 2⁵ = 105523493 is a prime.

It is a super-2 number, since 2×105523525² = 22270428656851250, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 105523493 and 105523502.

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 5 ways as a sum of consecutive naturals, for example, 2110446 + ... + 2110495.

Almost surely, 2^105523525 is an apocalyptic number.

It is an amenable number.

105523525 is a deficient number, since it is larger than the sum of its proper divisors (25325677).

105523525 is an equidigital number, since it uses as much as digits as its factorization.

105523525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4220951 (or 4220946 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 105523525 is about 10272.4644073367. The cubic root of 105523525 is about 472.5521717631.

The spelling of 105523525 in words is "one hundred five million, five hundred twenty-three thousand, five hundred twenty-five".