5512721897 has 2 divisors, whose sum is σ = 5512721898. Its totient is φ = 5512721896.

The previous prime is 5512721881. The next prime is 5512721923. The reversal of 5512721897 is 7981272155.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5477628121 + 35093776 = 74011^2 + 5924^2 .

It is a cyclic number.

It is not a de Polignac number, because 5512721897 - 2⁴ = 5512721881 is a prime.

It is not a weakly prime, because it can be changed into another prime (5512721197) 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, 2756360948 + 2756360949.

It is an arithmetic number, because the mean of its divisors is an integer number (2756360949).

Almost surely, 2^5512721897 is an apocalyptic number.

It is an amenable number.

5512721897 is a deficient number, since it is larger than the sum of its proper divisors (1).

5512721897 is an equidigital number, since it uses as much as digits as its factorization.

5512721897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 352800, while the sum is 47.

The square root of 5512721897 is about 74247.7063416777. The cubic root of 5512721897 is about 1766.5341114065.

The spelling of 5512721897 in words is "five billion, five hundred twelve million, seven hundred twenty-one thousand, eight hundred ninety-seven".