5220302531 has 4 divisors (see below), whose sum is σ = 5220990552. Its totient is φ = 5219614512.

The previous prime is 5220302453. The next prime is 5220302569. The reversal of 5220302531 is 1352030225.

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

It is a cyclic number.

It is not a de Polignac number, because 5220302531 - 2²⁶ = 5153193667 is a prime.

It is a super-2 number, since 2×5220302531² = 54503117030330011922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5220302497 and 5220302506.

It is not an unprimeable number, because it can be changed into a prime (5220302431) 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, 332501 + ... + 347846.

It is an arithmetic number, because the mean of its divisors is an integer number (1305247638).

Almost surely, 2^5220302531 is an apocalyptic number.

5220302531 is a deficient number, since it is larger than the sum of its proper divisors (688021).

5220302531 is an equidigital number, since it uses as much as digits as its factorization.

5220302531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688020.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 5220302531 is about 72251.6610950918. The cubic root of 5220302531 is about 1734.7300065160.

Adding to 5220302531 its reverse (1352030225), we get a palindrome (6572332756).

The spelling of 5220302531 in words is "five billion, two hundred twenty million, three hundred two thousand, five hundred thirty-one".