545664552 has 16 divisors (see below), whose sum is σ = 1364161440. Its totient is φ = 181888176.

The previous prime is 545664499. The next prime is 545664571. The reversal of 545664552 is 255466545.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11367988 + ... + 11368035.

It is an arithmetic number, because the mean of its divisors is an integer number (85260090).

Almost surely, 2^545664552 is an apocalyptic number.

It is an amenable number.

545664552 is an abundant number, since it is smaller than the sum of its proper divisors (818496888).

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

545664552 is a wasteful number, since it uses less digits than its factorization.

545664552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22736032 (or 22736028 counting only the distinct ones).

The product of its digits is 720000, while the sum is 42.

The square root of 545664552 is about 23359.4638637106. The cubic root of 545664552 is about 817.1627862261.

The spelling of 545664552 in words is "five hundred forty-five million, six hundred sixty-four thousand, five hundred fifty-two".