52021352444 has 12 divisors (see below), whose sum is σ = 91158593568. Its totient is φ = 25976040000.

The previous prime is 52021352443. The next prime is 52021352473. The reversal of 52021352444 is 44425312025.

It is a super-2 number, since 2×52021352444² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 52021352444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52021352441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8655677 + ... + 8661684.

It is an arithmetic number, because the mean of its divisors is an integer number (7596549464).

Almost surely, 2^52021352444 is an apocalyptic number.

It is an amenable number.

52021352444 is a deficient number, since it is larger than the sum of its proper divisors (39137241124).

52021352444 is a wasteful number, since it uses less digits than its factorization.

52021352444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17318116 (or 17318114 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 52021352444 its reverse (44425312025), we get a palindrome (96446664469).

The spelling of 52021352444 in words is "fifty-two billion, twenty-one million, three hundred fifty-two thousand, four hundred forty-four".