5321520 has 120 divisors (see below), whose sum is σ = 18860400. Its totient is φ = 1340928.

The previous prime is 5321507. The next prime is 5321593. The reversal of 5321520 is 251235.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×5321520² = 56637150220800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 5321493 and 5321502.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13486 + ... + 13874.

It is an arithmetic number, because the mean of its divisors is an integer number (157170).

Almost surely, 2^5321520 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 5321520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9430200).

5321520 is an abundant number, since it is smaller than the sum of its proper divisors (13538880).

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

5321520 is a wasteful number, since it uses less digits than its factorization.

5321520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427 (or 418 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 5321520 is about 2306.8419971901. The cubic root of 5321520 is about 174.5869988705.

Adding to 5321520 its reverse (251235), we get a palindrome (5572755).

It can be divided in two parts, 53215 and 20, that added together give a palindrome (53235).

The spelling of 5321520 in words is "five million, three hundred twenty-one thousand, five hundred twenty".