105553549 has 2 divisors, whose sum is σ = 105553550. Its totient is φ = 105553548.

The previous prime is 105553517. The next prime is 105553571. The reversal of 105553549 is 945355501.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 94284100 + 11269449 = 9710^2 + 3357^2 .

It is a cyclic number.

It is not a de Polignac number, because 105553549 - 2⁵ = 105553517 is a prime.

It is a super-2 number, since 2×105553549² = 22283103412990802, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (105553579) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52776774 + 52776775.

It is an arithmetic number, because the mean of its divisors is an integer number (52776775).

Almost surely, 2^105553549 is an apocalyptic number.

It is an amenable number.

105553549 is a deficient number, since it is larger than the sum of its proper divisors (1).

105553549 is an equidigital number, since it uses as much as digits as its factorization.

105553549 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 67500, while the sum is 37.

The square root of 105553549 is about 10273.9256859294. The cubic root of 105553549 is about 472.5969850280.

The spelling of 105553549 in words is "one hundred five million, five hundred fifty-three thousand, five hundred forty-nine".