2623216537 has 2 divisors, whose sum is σ = 2623216538. Its totient is φ = 2623216536.

The previous prime is 2623216517. The next prime is 2623216549. The reversal of 2623216537 is 7356123262.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2454112521 + 169104016 = 49539^2 + 13004^2 .

It is a cyclic number.

It is not a de Polignac number, because 2623216537 - 2³¹ = 475732889 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2623216496 and 2623216505.

It is not a weakly prime, because it can be changed into another prime (2623216517) 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, 1311608268 + 1311608269.

It is an arithmetic number, because the mean of its divisors is an integer number (1311608269).

Almost surely, 2^2623216537 is an apocalyptic number.

It is an amenable number.

2623216537 is a deficient number, since it is larger than the sum of its proper divisors (1).

2623216537 is an equidigital number, since it uses as much as digits as its factorization.

2623216537 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 90720, while the sum is 37.

The square root of 2623216537 is about 51217.3460558042. The cubic root of 2623216537 is about 1379.1496085748.

Adding to 2623216537 its reverse (7356123262), we get a palindrome (9979339799).

The spelling of 2623216537 in words is "two billion, six hundred twenty-three million, two hundred sixteen thousand, five hundred thirty-seven".