52245133512 has 384 divisors, whose sum is σ = 166041308160. Its totient is φ = 13479459840.

The previous prime is 52245133393. The next prime is 52245133517. The reversal of 52245133512 is 21533154225.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (52245133517) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 66384783 + ... + 66385569.

It is an arithmetic number, because the mean of its divisors is an integer number (432399240).

Almost surely, 2^52245133512 is an apocalyptic number.

52245133512 is a gapful number since it is divisible by the number (52) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 52245133512, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (83020654080).

52245133512 is an abundant number, since it is smaller than the sum of its proper divisors (113796174648).

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

52245133512 is a wasteful number, since it uses less digits than its factorization.

52245133512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 901 (or 868 counting only the distinct ones).

The product of its digits is 36000, while the sum is 33.

Adding to 52245133512 its reverse (21533154225), we get a palindrome (73778287737).

The spelling of 52245133512 in words is "fifty-two billion, two hundred forty-five million, one hundred thirty-three thousand, five hundred twelve".