2543528664 has 48 divisors (see below), whose sum is σ = 6924827520. Its totient is φ = 843399360.

The previous prime is 2543528653. The next prime is 2543528699. The reversal of 2543528664 is 4668253452.

2543528664 is a `hidden beast` number, since 25 + 43 + 528 + 6 + 64 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78727 + ... + 106230.

It is an arithmetic number, because the mean of its divisors is an integer number (144267240).

Almost surely, 2^2543528664 is an apocalyptic number.

2543528664 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2543528664 is an abundant number, since it is smaller than the sum of its proper divisors (4381298856).

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

2543528664 is a wasteful number, since it uses less digits than its factorization.

2543528664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185160 (or 185153 counting only the distinct ones).

The product of its digits is 1382400, while the sum is 45.

The square root of 2543528664 is about 50433.4082132072. The cubic root of 2543528664 is about 1365.0405269133.

The spelling of 2543528664 in words is "two billion, five hundred forty-three million, five hundred twenty-eight thousand, six hundred sixty-four".