5555449 has 3 divisors (see below), whose sum is σ = 5557807. Its totient is φ = 5553092.

The previous prime is 5555401. The next prime is 5555461. The reversal of 5555449 is 9445555.

The square root of 5555449 is 2357.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 1010025 + 4545424 = 1005^2 + 2132^2 .

It is not a de Polignac number, because 5555449 - 2⁷ = 5555321 is a prime.

It is a super-3 number, since 3×5555449³ (a number of 21 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5555149) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1179 + ... + 3535.

Almost surely, 2^5555449 is an apocalyptic number.

5555449 is the 2357-th square number.

5555449 is the 1179-th centered octagonal number.

It is an amenable number.

5555449 is a deficient number, since it is larger than the sum of its proper divisors (2358).

5555449 is an frugal number, since it uses more digits than its factorization.

5555449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4714 (or 2357 counting only the distinct ones).

The product of its digits is 90000, while the sum is 37.

The cubic root of 5555449 is about 177.1086292015.

Multiplying 5555449 by its product of digits (90000), we get a square (499990410000 = 707100²).

The spelling of 5555449 in words is "five million, five hundred fifty-five thousand, four hundred forty-nine".