3455521805 has 4 divisors (see below), whose sum is σ = 4146626172. Its totient is φ = 2764417440.

The previous prime is 3455521793. The next prime is 3455521837. The reversal of 3455521805 is 5081255543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1212362761 + 2243159044 = 34819^2 + 47362^2 .

It is not a de Polignac number, because 3455521805 - 2¹⁴ = 3455505421 is a prime.

It is a super-3 number, since 3×3455521805³ (a number of 30 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 345552176 + ... + 345552185.

It is an arithmetic number, because the mean of its divisors is an integer number (1036656543).

Almost surely, 2^3455521805 is an apocalyptic number.

It is an amenable number.

3455521805 is a deficient number, since it is larger than the sum of its proper divisors (691104367).

3455521805 is an equidigital number, since it uses as much as digits as its factorization.

3455521805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691104366.

The product of its (nonzero) digits is 120000, while the sum is 38.

The square root of 3455521805 is about 58783.6865550299. The cubic root of 3455521805 is about 1511.8355242562.

The spelling of 3455521805 in words is "three billion, four hundred fifty-five million, five hundred twenty-one thousand, eight hundred five".