5497911521 has 2 divisors, whose sum is σ = 5497911522. Its totient is φ = 5497911520.

The previous prime is 5497911509. The next prime is 5497911533. The reversal of 5497911521 is 1251197945.

It is a balanced prime because it is at equal distance from previous prime (5497911509) and next prime (5497911533).

It can be written as a sum of positive squares in only one way, i.e., 3178140625 + 2319770896 = 56375^2 + 48164^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5497911521 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (5497911541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2748955760 + 2748955761.

It is an arithmetic number, because the mean of its divisors is an integer number (2748955761).

Almost surely, 2^5497911521 is an apocalyptic number.

It is an amenable number.

5497911521 is a deficient number, since it is larger than the sum of its proper divisors (1).

5497911521 is an equidigital number, since it uses as much as digits as its factorization.

5497911521 is an evil number, because the sum of its binary digits is even.

The product of its digits is 113400, while the sum is 44.

The square root of 5497911521 is about 74147.9030114810. The cubic root of 5497911521 is about 1764.9507133661.

The spelling of 5497911521 in words is "five billion, four hundred ninety-seven million, nine hundred eleven thousand, five hundred twenty-one".