5642520 has 64 divisors (see below), whose sum is σ = 18234720. Its totient is φ = 1388544.

The previous prime is 5642513. The next prime is 5642531. The reversal of 5642520 is 252465.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a zygodrome in base 9.

It is a congruent number.

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, 249 + ... + 3368.

Almost surely, 2^5642520 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 5642520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9117360).

5642520 is an abundant number, since it is smaller than the sum of its proper divisors (12592200).

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

5642520 is a wasteful number, since it uses less digits than its factorization.

5642520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3644 (or 3640 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 5642520 is about 2375.3989138669. The cubic root of 5642520 is about 178.0291161393.

Adding to 5642520 its reverse (252465), we get a palindrome (5894985).

The spelling of 5642520 in words is "five million, six hundred forty-two thousand, five hundred twenty".