545507693 has 8 divisors (see below), whose sum is σ = 548636928. Its totient is φ = 542387664.

The previous prime is 545507681. The next prime is 545507723. The reversal of 545507693 is 396705545.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 545507693 - 2¹⁸ = 545245549 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545507663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140780 + ... + 144602.

It is an arithmetic number, because the mean of its divisors is an integer number (68579616).

Almost surely, 2^545507693 is an apocalyptic number.

It is an amenable number.

545507693 is a deficient number, since it is larger than the sum of its proper divisors (3129235).

545507693 is a wasteful number, since it uses less digits than its factorization.

545507693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4603.

The product of its (nonzero) digits is 567000, while the sum is 44.

The square root of 545507693 is about 23356.1061181011. The cubic root of 545507693 is about 817.0844770516.

The spelling of 545507693 in words is "five hundred forty-five million, five hundred seven thousand, six hundred ninety-three".