545600669 has 4 divisors (see below), whose sum is σ = 577694844. Its totient is φ = 513506496.

The previous prime is 545600659. The next prime is 545600681. The reversal of 545600669 is 966006545.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 283484569 + 262116100 = 16837^2 + 16190^2 .

It is a cyclic number.

It is not a de Polignac number, because 545600669 - 2¹² = 545596573 is a prime.

It is a super-2 number, since 2×545600669² = 595360180026495122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545600659) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16047062 + ... + 16047095.

It is an arithmetic number, because the mean of its divisors is an integer number (144423711).

Almost surely, 2^545600669 is an apocalyptic number.

It is an amenable number.

545600669 is a deficient number, since it is larger than the sum of its proper divisors (32094175).

545600669 is a wasteful number, since it uses less digits than its factorization.

545600669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32094174.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 545600669 is about 23358.0964335710. The cubic root of 545600669 is about 817.1308955419.

The spelling of 545600669 in words is "five hundred forty-five million, six hundred thousand, six hundred sixty-nine".