5581290 has 64 divisors (see below), whose sum is σ = 15748992. Its totient is φ = 1248000.

The previous prime is 5581259. The next prime is 5581309. The reversal of 5581290 is 921855.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3640 + ... + 4940.

It is an arithmetic number, because the mean of its divisors is an integer number (246078).

Almost surely, 2^5581290 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5581290, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7874496).

5581290 is an abundant number, since it is smaller than the sum of its proper divisors (10167702).

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

5581290 is a wasteful number, since it uses less digits than its factorization.

5581290 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1335.

The product of its (nonzero) digits is 3600, while the sum is 30.

The square root of 5581290 is about 2362.4753966973. The cubic root of 5581290 is about 177.3828096381.

The spelling of 5581290 in words is "five million, five hundred eighty-one thousand, two hundred ninety".