5455890 has 96 divisors (see below), whose sum is σ = 16087680. Its totient is φ = 1314720.

The previous prime is 5455867. The next prime is 5455897. The reversal of 5455890 is 985545.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (5455897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 32587 + ... + 32753.

It is an arithmetic number, because the mean of its divisors is an integer number (167580).

Almost surely, 2^5455890 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5455890, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8043840).

5455890 is an abundant number, since it is smaller than the sum of its proper divisors (10631790).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5455890 is a wasteful number, since it uses less digits than its factorization.

5455890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205 (or 188 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 36.

The square root of 5455890 is about 2335.7846647326. The cubic root of 5455890 is about 176.0442597022.

The spelling of 5455890 in words is "five million, four hundred fifty-five thousand, eight hundred ninety".