5437521 has 12 divisors (see below), whose sum is σ = 7890948. Its totient is φ = 3608064.

The previous prime is 5437511. The next prime is 5437547. The reversal of 5437521 is 1257345.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2143296 + 3294225 = 1464^2 + 1815^2 .

It is not a de Polignac number, because 5437521 - 2¹⁵ = 5404753 is a prime.

5437521 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (5437511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 801 + ... + 3393.

It is an arithmetic number, because the mean of its divisors is an integer number (657579).

Almost surely, 2^5437521 is an apocalyptic number.

It is an amenable number.

5437521 is a deficient number, since it is larger than the sum of its proper divisors (2453427).

5437521 is a wasteful number, since it uses less digits than its factorization.

5437521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2832 (or 2829 counting only the distinct ones).

The product of its digits is 4200, while the sum is 27.

The square root of 5437521 is about 2331.8492661405. The cubic root of 5437521 is about 175.8464677764.

The spelling of 5437521 in words is "five million, four hundred thirty-seven thousand, five hundred twenty-one".