5124521 has 2 divisors, whose sum is σ = 5124522. Its totient is φ = 5124520.

The previous prime is 5124499. The next prime is 5124523. The reversal of 5124521 is 1254215.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3534400 + 1590121 = 1880^2 + 1261^2 .

It is a cyclic number.

It is not a de Polignac number, because 5124521 - 2¹⁴ = 5108137 is a prime.

Together with 5124523, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 5124493 and 5124502.

It is not a weakly prime, because it can be changed into another prime (5124523) 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 as a sum of consecutive naturals, namely, 2562260 + 2562261.

It is an arithmetic number, because the mean of its divisors is an integer number (2562261).

Almost surely, 2^5124521 is an apocalyptic number.

It is an amenable number.

5124521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5124521 is an equidigital number, since it uses as much as digits as its factorization.

5124521 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 400, while the sum is 20.

The square root of 5124521 is about 2263.7404886603. The cubic root of 5124521 is about 172.4054904825.

Adding to 5124521 its reverse (1254215), we get a palindrome (6378736).

It can be divided in two parts, 51 and 24521, that multiplied together give a triangular number (1250571 = T₁₅₈₁).

The spelling of 5124521 in words is "five million, one hundred twenty-four thousand, five hundred twenty-one".