52249200640 has 384 divisors, whose sum is σ = 157713454080. Its totient is φ = 16170614784.

The previous prime is 52249200631. The next prime is 52249200643. The reversal of 52249200640 is 4600294225.

It is a junction number, because it is equal to n+sod(n) for n = 52249200596 and 52249200605.

It is not an unprimeable number, because it can be changed into a prime (52249200643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43795884 + ... + 43797076.

It is an arithmetic number, because the mean of its divisors is an integer number (410712120).

Almost surely, 2^52249200640 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 52249200640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78856727040).

52249200640 is an abundant number, since it is smaller than the sum of its proper divisors (105464253440).

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

52249200640 is a wasteful number, since it uses less digits than its factorization.

52249200640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1287 (or 1267 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 34.

Adding to 52249200640 its reverse (4600294225), we get a palindrome (56849494865).

The spelling of 52249200640 in words is "fifty-two billion, two hundred forty-nine million, two hundred thousand, six hundred forty".