5421528 has 96 divisors (see below), whose sum is σ = 17372160. Its totient is φ = 1494720.

The previous prime is 5421527. The next prime is 5421539. The reversal of 5421528 is 8251245.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5421527) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15451 + ... + 15797.

It is an arithmetic number, because the mean of its divisors is an integer number (180960).

Almost surely, 2^5421528 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 5421528, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8686080).

5421528 is an abundant number, since it is smaller than the sum of its proper divisors (11950632).

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

5421528 is a wasteful number, since it uses less digits than its factorization.

5421528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 397 (or 390 counting only the distinct ones).

The product of its digits is 3200, while the sum is 27.

The square root of 5421528 is about 2328.4174883384. The cubic root of 5421528 is about 175.6738968388.

The spelling of 5421528 in words is "five million, four hundred twenty-one thousand, five hundred twenty-eight".