5205540 has 48 divisors (see below), whose sum is σ = 14736960. Its totient is φ = 1372800.

The previous prime is 5205539. The next prime is 5205583. The reversal of 5205540 is 455025.

5205540 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5631 + ... + 6489.

It is an arithmetic number, because the mean of its divisors is an integer number (307020).

Almost surely, 2^5205540 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 5205540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7368480).

5205540 is an abundant number, since it is smaller than the sum of its proper divisors (9531420).

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

5205540 is a wasteful number, since it uses less digits than its factorization.

5205540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 972 (or 970 counting only the distinct ones).

The product of its (nonzero) digits is 1000, while the sum is 21.

The square root of 5205540 is about 2281.5652521898. The cubic root of 5205540 is about 173.3093244195.

The spelling of 5205540 in words is "five million, two hundred five thousand, five hundred forty".