545456565 has 16 divisors (see below), whose sum is σ = 969700800. Its totient is φ = 290910096.

The previous prime is 545456533. The next prime is 545456567. The reversal of 545456565 is 565654545.

545456565 is a `hidden beast` number, since 5 + 45 + 45 + 6 + 565 = 666.

545456565 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is not a de Polignac number, because 545456565 - 2⁵ = 545456533 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an alternating number because its digits alternate between odd and even.

It is a self number, because there is not a number n which added to its sum of digits gives 545456565.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545456567) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2020075 + ... + 2020344.

It is an arithmetic number, because the mean of its divisors is an integer number (60606300).

Almost surely, 2^545456565 is an apocalyptic number.

It is an amenable number.

545456565 is a deficient number, since it is larger than the sum of its proper divisors (424244235).

545456565 is a wasteful number, since it uses less digits than its factorization.

545456565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4040433 (or 4040427 counting only the distinct ones).

The product of its digits is 1800000, while the sum is 45.

The square root of 545456565 is about 23355.0115606908. The cubic root of 545456565 is about 817.0589490277.

The spelling of 545456565 in words is "five hundred forty-five million, four hundred fifty-six thousand, five hundred sixty-five".