5131052521 has 16 divisors (see below), whose sum is σ = 5896281600. Its totient is φ = 4373929728.

The previous prime is 5131052519. The next prime is 5131052539. The reversal of 5131052521 is 1252501315.

It is not a de Polignac number, because 5131052521 - 2¹ = 5131052519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5131052021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1726725 + ... + 1729693.

It is an arithmetic number, because the mean of its divisors is an integer number (368517600).

Almost surely, 2^5131052521 is an apocalyptic number.

It is an amenable number.

5131052521 is a deficient number, since it is larger than the sum of its proper divisors (765229079).

5131052521 is a wasteful number, since it uses less digits than its factorization.

5131052521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4248.

The product of its (nonzero) digits is 1500, while the sum is 25.

The square root of 5131052521 is about 71631.3654832853. The cubic root of 5131052521 is about 1724.7870656159.

Adding to 5131052521 its reverse (1252501315), we get a palindrome (6383553836).

The spelling of 5131052521 in words is "five billion, one hundred thirty-one million, fifty-two thousand, five hundred twenty-one".