105575551 has 2 divisors, whose sum is σ = 105575552. Its totient is φ = 105575550.

The previous prime is 105575537. The next prime is 105575557. The reversal of 105575551 is 155575501.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 105575551 - 2¹³ = 105567359 is a prime.

It is a super-2 number, since 2×105575551² = 22292393937907202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105575557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52787775 + 52787776.

It is an arithmetic number, because the mean of its divisors is an integer number (52787776).

Almost surely, 2^105575551 is an apocalyptic number.

105575551 is a deficient number, since it is larger than the sum of its proper divisors (1).

105575551 is an equidigital number, since it uses as much as digits as its factorization.

105575551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21875, while the sum is 34.

The square root of 105575551 is about 10274.9963990261. The cubic root of 105575551 is about 472.6298194094.

The spelling of 105575551 in words is "one hundred five million, five hundred seventy-five thousand, five hundred fifty-one".