545647001 has 4 divisors (see below), whose sum is σ = 545703552. Its totient is φ = 545590452.

The previous prime is 545646979. The next prime is 545647007. The reversal of 545647001 is 100746545.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 100746545 = 5 ⋅20149309.

It is a cyclic number.

It is not a de Polignac number, because 545647001 - 2¹⁰ = 545645977 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (545647007) 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 3 ways as a sum of consecutive naturals, for example, 9761 + ... + 34446.

It is an arithmetic number, because the mean of its divisors is an integer number (136425888).

Almost surely, 2^545647001 is an apocalyptic number.

It is an amenable number.

545647001 is a deficient number, since it is larger than the sum of its proper divisors (56551).

545647001 is a wasteful number, since it uses less digits than its factorization.

545647001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56550.

The product of its (nonzero) digits is 16800, while the sum is 32.

The square root of 545647001 is about 23359.0881885402. The cubic root of 545647001 is about 817.1540249350.

The spelling of 545647001 in words is "five hundred forty-five million, six hundred forty-seven thousand, one".