3550249 has 2 divisors, whose sum is σ = 3550250. Its totient is φ = 3550248.

The previous prime is 3550219. The next prime is 3550259. The reversal of 3550249 is 9420553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3240000 + 310249 = 1800^2 + 557^2 .

It is an emirp because it is prime and its reverse (9420553) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3550249 - 2⁹ = 3549737 is a prime.

It is not a weakly prime, because it can be changed into another prime (3550219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1775124 + 1775125.

It is an arithmetic number, because the mean of its divisors is an integer number (1775125).

Almost surely, 2^3550249 is an apocalyptic number.

It is an amenable number.

3550249 is a deficient number, since it is larger than the sum of its proper divisors (1).

3550249 is an equidigital number, since it uses as much as digits as its factorization.

3550249 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 3550249 is about 1884.2104447221. The cubic root of 3550249 is about 152.5525967459.

The spelling of 3550249 in words is "three million, five hundred fifty thousand, two hundred forty-nine".