545263816 has 8 divisors (see below), whose sum is σ = 1022369670. Its totient is φ = 272631904.

The previous prime is 545263753. The next prime is 545263871. The reversal of 545263816 is 618362545.

It can be written as a sum of positive squares in only one way, i.e., 499701316 + 45562500 = 22354^2 + 6750^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 34078981 + ... + 34078996.

Almost surely, 2^545263816 is an apocalyptic number.

It is an amenable number.

545263816 is a deficient number, since it is larger than the sum of its proper divisors (477105854).

545263816 is a wasteful number, since it uses less digits than its factorization.

545263816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68157983 (or 68157979 counting only the distinct ones).

The product of its digits is 172800, while the sum is 40.

The square root of 545263816 is about 23350.8846941609. The cubic root of 545263816 is about 816.9626958093.

The spelling of 545263816 in words is "five hundred forty-five million, two hundred sixty-three thousand, eight hundred sixteen".