52530644500 has 24 divisors (see below), whose sum is σ = 114726928680. Its totient is φ = 21012257600.

The previous prime is 52530644483. The next prime is 52530644503. The reversal of 52530644500 is 544603525.

It can be written as a sum of positive squares in 4 ways, for example, as 106131204 + 52424513296 = 10302^2 + 228964^2 .

It is a super-2 number, since 2×52530644500² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52530644503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52530145 + ... + 52531144.

It is an arithmetic number, because the mean of its divisors is an integer number (4780288695).

Almost surely, 2^52530644500 is an apocalyptic number.

52530644500 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

52530644500 is an abundant number, since it is smaller than the sum of its proper divisors (62196284180).

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

52530644500 is a wasteful number, since it uses less digits than its factorization.

52530644500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105061308 (or 105061296 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

The spelling of 52530644500 in words is "fifty-two billion, five hundred thirty million, six hundred forty-four thousand, five hundred".