5545665457 has 2 divisors, whose sum is σ = 5545665458. Its totient is φ = 5545665456.

The previous prime is 5545665449. The next prime is 5545665469. The reversal of 5545665457 is 7545665455.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4792931361 + 752734096 = 69231^2 + 27436^2 .

It is a cyclic number.

It is not a de Polignac number, because 5545665457 - 2³ = 5545665449 is a prime.

It is not a weakly prime, because it can be changed into another prime (5545665757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2772832728 + 2772832729.

It is an arithmetic number, because the mean of its divisors is an integer number (2772832729).

Almost surely, 2^5545665457 is an apocalyptic number.

It is an amenable number.

5545665457 is a deficient number, since it is larger than the sum of its proper divisors (1).

5545665457 is an equidigital number, since it uses as much as digits as its factorization.

5545665457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12600000, while the sum is 52.

The square root of 5545665457 is about 74469.2248986116. The cubic root of 5545665457 is about 1770.0460112312.

The spelling of 5545665457 in words is "five billion, five hundred forty-five million, six hundred sixty-five thousand, four hundred fifty-seven".