5132521 has 4 divisors (see below), whose sum is σ = 5434452. Its totient is φ = 4830592.

The previous prime is 5132513. The next prime is 5132531. The reversal of 5132521 is 1252315.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4562496 + 570025 = 2136^2 + 755^2 .

It is a cyclic number.

It is not a de Polignac number, because 5132521 - 2³ = 5132513 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5132531) 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 3 ways as a sum of consecutive naturals, for example, 150940 + ... + 150973.

It is an arithmetic number, because the mean of its divisors is an integer number (1358613).

Almost surely, 2^5132521 is an apocalyptic number.

It is an amenable number.

5132521 is a deficient number, since it is larger than the sum of its proper divisors (301931).

5132521 is a wasteful number, since it uses less digits than its factorization.

5132521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 301930.

The product of its digits is 300, while the sum is 19.

The square root of 5132521 is about 2265.5067865712. The cubic root of 5132521 is about 172.4951591444.

Adding to 5132521 its reverse (1252315), we get a palindrome (6384836).

The spelling of 5132521 in words is "five million, one hundred thirty-two thousand, five hundred twenty-one".