5521995637 has 2 divisors, whose sum is σ = 5521995638. Its totient is φ = 5521995636.

The previous prime is 5521995623. The next prime is 5521995649. The reversal of 5521995637 is 7365991255.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4252213681 + 1269781956 = 65209^2 + 35634^2 .

It is a cyclic number.

It is not a de Polignac number, because 5521995637 - 2²⁷ = 5387777909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5521995617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2760997818 + 2760997819.

It is an arithmetic number, because the mean of its divisors is an integer number (2760997819).

Almost surely, 2^5521995637 is an apocalyptic number.

It is an amenable number.

5521995637 is a deficient number, since it is larger than the sum of its proper divisors (1).

5521995637 is an equidigital number, since it uses as much as digits as its factorization.

5521995637 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2551500, while the sum is 52.

The square root of 5521995637 is about 74310.1314559462. The cubic root of 5521995637 is about 1767.5241365731.

The spelling of 5521995637 in words is "five billion, five hundred twenty-one million, nine hundred ninety-five thousand, six hundred thirty-seven".