3550545 has 12 divisors (see below), whose sum is σ = 6154356. Its totient is φ = 1893600.

The previous prime is 3550541. The next prime is 3550567. The reversal of 3550545 is 5450553.

3550545 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 1218816 + 2331729 = 1104^2 + 1527^2 .

It is not a de Polignac number, because 3550545 - 2² = 3550541 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (3550541) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 39406 + ... + 39495.

It is an arithmetic number, because the mean of its divisors is an integer number (512863).

Almost surely, 2^3550545 is an apocalyptic number.

It is an amenable number.

3550545 is a deficient number, since it is larger than the sum of its proper divisors (2603811).

3550545 is a wasteful number, since it uses less digits than its factorization.

3550545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78912 (or 78909 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 3550545 is about 1884.2889905744. The cubic root of 3550545 is about 152.5568362902.

It can be divided in two parts, 3550 and 545, that added together give a triangular number (4095 = T₉₀).

The spelling of 3550545 in words is "three million, five hundred fifty thousand, five hundred forty-five".