5555890 has 8 divisors (see below), whose sum is σ = 10000620. Its totient is φ = 2222352.

The previous prime is 5555873. The next prime is 5555897. The reversal of 5555890 is 985555.

It can be written as a sum of positive squares in 2 ways, for example, as 5555449 + 441 = 2357^2 + 21^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (5555897) 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 3 ways as a sum of consecutive naturals, for example, 277785 + ... + 277804.

Almost surely, 2^5555890 is an apocalyptic number.

5555890 is a deficient number, since it is larger than the sum of its proper divisors (4444730).

5555890 is a wasteful number, since it uses less digits than its factorization.

5555890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 555596.

The product of its (nonzero) digits is 45000, while the sum is 37.

The square root of 5555890 is about 2357.0935492678. The cubic root of 5555890 is about 177.1133154617.

It can be divided in two parts, 55 and 55890, that added together give a triangular number (55945 = T₃₃₄).

The spelling of 5555890 in words is "five million, five hundred fifty-five thousand, eight hundred ninety".