5531731157 has 2 divisors, whose sum is σ = 5531731158. Its totient is φ = 5531731156.

The previous prime is 5531731151. The next prime is 5531731181. The reversal of 5531731157 is 7511371355.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3537751441 + 1993979716 = 59479^2 + 44654^2 .

It is a cyclic number.

It is not a de Polignac number, because 5531731157 - 2⁸ = 5531730901 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 5531731157.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5531731151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765865578 + 2765865579.

It is an arithmetic number, because the mean of its divisors is an integer number (2765865579).

Almost surely, 2^5531731157 is an apocalyptic number.

It is an amenable number.

5531731157 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531731157 is an equidigital number, since it uses as much as digits as its factorization.

5531731157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 55125, while the sum is 38.

The square root of 5531731157 is about 74375.6086159972. The cubic root of 5531731157 is about 1768.5622675269.

The spelling of 5531731157 in words is "five billion, five hundred thirty-one million, seven hundred thirty-one thousand, one hundred fifty-seven".