52218025940 has 24 divisors (see below), whose sum is σ = 109662564480. Its totient is φ = 20886313248.

The previous prime is 52218025931. The next prime is 52218025957. The reversal of 52218025940 is 4952081225.

It is a junction number, because it is equal to n+sod(n) for n = 52218025894 and 52218025903.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 620081 + ... + 699239.

It is an arithmetic number, because the mean of its divisors is an integer number (4569273520).

Almost surely, 2^52218025940 is an apocalyptic number.

It is an amenable number.

52218025940 is an abundant number, since it is smaller than the sum of its proper divisors (57444538540).

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

52218025940 is a wasteful number, since it uses less digits than its factorization.

52218025940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112151 (or 112149 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 38.

The spelling of 52218025940 in words is "fifty-two billion, two hundred eighteen million, twenty-five thousand, nine hundred forty".