545558672 has 40 divisors (see below), whose sum is σ = 1100580600. Its totient is φ = 261660672.

The previous prime is 545558639. The next prime is 545558683. The reversal of 545558672 is 276855545.

It can be written as a sum of positive squares in 4 ways, for example, as 47554816 + 498003856 = 6896^2 + 22316^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 69104 + ... + 76592.

It is an arithmetic number, because the mean of its divisors is an integer number (27514515).

Almost surely, 2^545558672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 545558672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (550290300).

545558672 is an abundant number, since it is smaller than the sum of its proper divisors (555021928).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

545558672 is a wasteful number, since it uses less digits than its factorization.

545558672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7683 (or 7677 counting only the distinct ones).

The product of its digits is 1680000, while the sum is 47.

The square root of 545558672 is about 23357.1974346239. The cubic root of 545558672 is about 817.1099290924.

The spelling of 545558672 in words is "five hundred forty-five million, five hundred fifty-eight thousand, six hundred seventy-two".