545466623 has 16 divisors (see below), whose sum is σ = 601184640. Its totient is φ = 491824224.

The previous prime is 545466587. The next prime is 545466661. The reversal of 545466623 is 326664545.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545466623 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 (545466683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122840 + ... + 127202.

It is an arithmetic number, because the mean of its divisors is an integer number (37574040).

Almost surely, 2^545466623 is an apocalyptic number.

545466623 is a deficient number, since it is larger than the sum of its proper divisors (55718017).

545466623 is a wasteful number, since it uses less digits than its factorization.

545466623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4598.

The product of its digits is 518400, while the sum is 41.

The square root of 545466623 is about 23355.2268882150. The cubic root of 545466623 is about 817.0639710764.

The spelling of 545466623 in words is "five hundred forty-five million, four hundred sixty-six thousand, six hundred twenty-three".