5531657837 has 2 divisors, whose sum is σ = 5531657838. Its totient is φ = 5531657836.

The previous prime is 5531657827. The next prime is 5531657839. The reversal of 5531657837 is 7387561355.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5355458761 + 176199076 = 73181^2 + 13274^2 .

It is a cyclic number.

It is not a de Polignac number, because 5531657837 - 2¹² = 5531653741 is a prime.

Together with 5531657839, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5531657839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2765828918 + 2765828919.

It is an arithmetic number, because the mean of its divisors is an integer number (2765828919).

Almost surely, 2^5531657837 is an apocalyptic number.

It is an amenable number.

5531657837 is a deficient number, since it is larger than the sum of its proper divisors (1).

5531657837 is an equidigital number, since it uses as much as digits as its factorization.

5531657837 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2646000, while the sum is 50.

The square root of 5531657837 is about 74375.1157108344. The cubic root of 5531657837 is about 1768.5544537248.

The spelling of 5531657837 in words is "five billion, five hundred thirty-one million, six hundred fifty-seven thousand, eight hundred thirty-seven".