5509878 has 32 divisors (see below), whose sum is σ = 12413952. Its totient is φ = 1615200.

The previous prime is 5509873. The next prime is 5509883. The reversal of 5509878 is 8789055.

It is an interprime number because it is at equal distance from previous prime (5509873) and next prime (5509883).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5509873) 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 15 ways as a sum of consecutive naturals, for example, 700 + ... + 3392.

It is an arithmetic number, because the mean of its divisors is an integer number (387936).

Almost surely, 2^5509878 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5509878, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6206976).

5509878 is an abundant number, since it is smaller than the sum of its proper divisors (6904074).

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

5509878 is a wasteful number, since it uses less digits than its factorization.

5509878 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740.

The product of its (nonzero) digits is 100800, while the sum is 42.

The square root of 5509878 is about 2347.3129318436. The cubic root of 5509878 is about 176.6230286587.

The spelling of 5509878 in words is "five million, five hundred nine thousand, eight hundred seventy-eight".