5120331251 has 4 divisors (see below), whose sum is σ = 5851807152. Its totient is φ = 4388855352.

The previous prime is 5120331239. The next prime is 5120331257. The reversal of 5120331251 is 1521330215.

It is a happy number.

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

It is not a de Polignac number, because 5120331251 - 2⁶ = 5120331187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5120331257) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365737940 + ... + 365737953.

It is an arithmetic number, because the mean of its divisors is an integer number (1462951788).

Almost surely, 2^5120331251 is an apocalyptic number.

5120331251 is a deficient number, since it is larger than the sum of its proper divisors (731475901).

5120331251 is an equidigital number, since it uses as much as digits as its factorization.

5120331251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 731475900.

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 5120331251 is about 71556.4899292859. The cubic root of 5120331251 is about 1723.5849209451.

Adding to 5120331251 its reverse (1521330215), we get a palindrome (6641661466).

The spelling of 5120331251 in words is "five billion, one hundred twenty million, three hundred thirty-one thousand, two hundred fifty-one".