545564674 has 4 divisors (see below), whose sum is σ = 818347014. Its totient is φ = 272782336.

The previous prime is 545564671. The next prime is 545564687. The reversal of 545564674 is 476465545.

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

It can be written as a sum of positive squares in only one way, i.e., 383180625 + 162384049 = 19575^2 + 12743^2 .

It is not an unprimeable number, because it can be changed into a prime (545564671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 136391167 + ... + 136391170.

Almost surely, 2^545564674 is an apocalyptic number.

545564674 is a deficient number, since it is larger than the sum of its proper divisors (272782340).

545564674 is a wasteful number, since it uses less digits than its factorization.

545564674 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272782339.

The product of its digits is 2016000, while the sum is 46.

The square root of 545564674 is about 23357.3259171507. The cubic root of 545564674 is about 817.1129255778.

The spelling of 545564674 in words is "five hundred forty-five million, five hundred sixty-four thousand, six hundred seventy-four".