545510756569 has 9 divisors (see below), whose sum is σ = 575747770143. Its totient is φ = 516786369552.

The previous prime is 545510756521. The next prime is 545510756573. The reversal of 545510756569 is 965657015545.

The square root of 545510756569 is 738587.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 541924184025 + 3586572544 = 736155^2 + 59888^2 .

It is a de Polignac number, because none of the positive numbers 2^k-545510756569 is a prime.

It is a super-2 number, since 2×545510756569² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (545510756519) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 14013717 + ... + 14052589.

Almost surely, 2^545510756569 is an apocalyptic number.

545510756569 is the 738587-th square number.

545510756569 is the 369294-th centered octagonal number.

It is an amenable number.

545510756569 is a deficient number, since it is larger than the sum of its proper divisors (30237013574).

545510756569 is an frugal number, since it uses more digits than its factorization.

545510756569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77784 (or 38892 counting only the distinct ones).

The product of its (nonzero) digits is 28350000, while the sum is 58.

The spelling of 545510756569 in words is "five hundred forty-five billion, five hundred ten million, seven hundred fifty-six thousand, five hundred sixty-nine".