5015531231 has 2 divisors, whose sum is σ = 5015531232. Its totient is φ = 5015531230.

The previous prime is 5015531141. The next prime is 5015531333. The reversal of 5015531231 is 1321355105.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5015531231 is a prime.

It is a super-2 number, since 2×5015531231² = 50311107058272750722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 5015531231.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5015231231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2507765615 + 2507765616.

It is an arithmetic number, because the mean of its divisors is an integer number (2507765616).

Almost surely, 2^5015531231 is an apocalyptic number.

5015531231 is a deficient number, since it is larger than the sum of its proper divisors (1).

5015531231 is an equidigital number, since it uses as much as digits as its factorization.

5015531231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 26.

The square root of 5015531231 is about 70820.4153546137. The cubic root of 5015531231 is about 1711.7446520229.

Adding to 5015531231 its reverse (1321355105), we get a palindrome (6336886336).

The spelling of 5015531231 in words is "five billion, fifteen million, five hundred thirty-one thousand, two hundred thirty-one".