52522143640 has 16 divisors (see below), whose sum is σ = 118174823280. Its totient is φ = 21008857440.

The previous prime is 52522143623. The next prime is 52522143673. The reversal of 52522143640 is 4634122525.

It is a junction number, because it is equal to n+sod(n) for n = 52522143596 and 52522143605.

It is a congruent 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, 656526756 + ... + 656526835.

It is an arithmetic number, because the mean of its divisors is an integer number (7385926455).

Almost surely, 2^52522143640 is an apocalyptic number.

It is an amenable number.

52522143640 is an abundant number, since it is smaller than the sum of its proper divisors (65652679640).

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

52522143640 is a wasteful number, since it uses less digits than its factorization.

52522143640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1313053602 (or 1313053598 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

The spelling of 52522143640 in words is "fifty-two billion, five hundred twenty-two million, one hundred forty-three thousand, six hundred forty".