545446423 has 4 divisors (see below), whose sum is σ = 551069680. Its totient is φ = 539823168.

The previous prime is 545446393. The next prime is 545446427. The reversal of 545446423 is 324644545.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-545446423 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 (545446427) 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, 2811483 + ... + 2811676.

It is an arithmetic number, because the mean of its divisors is an integer number (137767420).

Almost surely, 2^545446423 is an apocalyptic number.

545446423 is a deficient number, since it is larger than the sum of its proper divisors (5623257).

545446423 is an equidigital number, since it uses as much as digits as its factorization.

545446423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5623256.

The product of its digits is 230400, while the sum is 37.

The square root of 545446423 is about 23354.7944328354. The cubic root of 545446423 is about 817.0538849745.

The spelling of 545446423 in words is "five hundred forty-five million, four hundred forty-six thousand, four hundred twenty-three".