52022121552 has 60 divisors (see below), whose sum is σ = 145937326080. Its totient is φ = 17299301184.

The previous prime is 52022121479. The next prime is 52022121559. The reversal of 52022121552 is 25512122025.

It is a happy number.

It is a super-2 number, since 2×52022121552² (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 (52022121559) 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 11 ways as a sum of consecutive naturals, for example, 370768 + ... + 491439.

It is an arithmetic number, because the mean of its divisors is an integer number (2432288768).

Almost surely, 2^52022121552 is an apocalyptic number.

It is an amenable number.

52022121552 is an abundant number, since it is smaller than the sum of its proper divisors (93915204528).

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

52022121552 is a wasteful number, since it uses less digits than its factorization.

52022121552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 862640 (or 862631 counting only the distinct ones).

The product of its (nonzero) digits is 4000, while the sum is 27.

Adding to 52022121552 its reverse (25512122025), we get a palindrome (77534243577).

The spelling of 52022121552 in words is "fifty-two billion, twenty-two million, one hundred twenty-one thousand, five hundred fifty-two".