52201897644 has 96 divisors (see below), whose sum is σ = 136388387520. Its totient is φ = 15429270528.

The previous prime is 52201897633. The next prime is 52201897651. The reversal of 52201897644 is 44679810225.

It is a junction number, because it is equal to n+sod(n) for n = 52201897593 and 52201897602.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 861942 + ... + 920514.

It is an arithmetic number, because the mean of its divisors is an integer number (1420712370).

Almost surely, 2^52201897644 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52201897644, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68194193760).

52201897644 is an abundant number, since it is smaller than the sum of its proper divisors (84186489876).

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

52201897644 is a wasteful number, since it uses less digits than its factorization.

52201897644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58819 (or 58817 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 48.

The spelling of 52201897644 in words is "fifty-two billion, two hundred one million, eight hundred ninety-seven thousand, six hundred forty-four".