545545023 has 4 divisors (see below), whose sum is σ = 727393368. Its totient is φ = 363696680.

The previous prime is 545545009. The next prime is 545545067. The reversal of 545545023 is 320545545.

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

It is a cyclic number.

It is not a de Polignac number, because 545545023 - 2⁸ = 545544767 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (545543023) 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, 90924168 + ... + 90924173.

It is an arithmetic number, because the mean of its divisors is an integer number (181848342).

Almost surely, 2^545545023 is an apocalyptic number.

545545023 is a deficient number, since it is larger than the sum of its proper divisors (181848345).

545545023 is a wasteful number, since it uses less digits than its factorization.

545545023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181848344.

The product of its (nonzero) digits is 60000, while the sum is 33.

The square root of 545545023 is about 23356.9052530510. The cubic root of 545545023 is about 817.1031147771.

The spelling of 545545023 in words is "five hundred forty-five million, five hundred forty-five thousand, twenty-three".