545248818 has 12 divisors (see below), whose sum is σ = 1181372478. Its totient is φ = 181749600.

The previous prime is 545248793. The next prime is 545248819. The reversal of 545248818 is 818842545.

545248818 is a `hidden beast` number, since 545 + 24 + 8 + 81 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 521071929 + 24176889 = 22827^2 + 4917^2 .

It is not an unprimeable number, because it can be changed into a prime (545248819) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15145783 + ... + 15145818.

Almost surely, 2^545248818 is an apocalyptic number.

545248818 is an abundant number, since it is smaller than the sum of its proper divisors (636123660).

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

545248818 is a wasteful number, since it uses less digits than its factorization.

545248818 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30291609 (or 30291606 counting only the distinct ones).

The product of its digits is 409600, while the sum is 45.

The square root of 545248818 is about 23350.5635478033. The cubic root of 545248818 is about 816.9552052953.

The spelling of 545248818 in words is "five hundred forty-five million, two hundred forty-eight thousand, eight hundred eighteen".