5403521 has 4 divisors (see below), whose sum is σ = 5472000. Its totient is φ = 5335044.

The previous prime is 5403511. The next prime is 5403523. The reversal of 5403521 is 1253045.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5403521 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5403493 and 5403502.

It is not an unprimeable number, because it can be changed into a prime (5403523) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34121 + ... + 34278.

It is an arithmetic number, because the mean of its divisors is an integer number (1368000).

Almost surely, 2^5403521 is an apocalyptic number.

It is an amenable number.

5403521 is a deficient number, since it is larger than the sum of its proper divisors (68479).

5403521 is an equidigital number, since it uses as much as digits as its factorization.

5403521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68478.

The product of its (nonzero) digits is 600, while the sum is 20.

The square root of 5403521 is about 2324.5474828448. The cubic root of 5403521 is about 175.4791873653.

Adding to 5403521 its reverse (1253045), we get a palindrome (6656566).

The spelling of 5403521 in words is "five million, four hundred three thousand, five hundred twenty-one".