52120533140240 has 160 divisors (see below), whose sum is σ = 123234413492736. Its totient is φ = 20498036981760.

The previous prime is 52120533140239. The next prime is 52120533140251. The reversal of 52120533140240 is 4204133502125.

It is a super-2 number, since 2×52120533140240² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 52120533140197 and 52120533140206.

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, 800946905 + ... + 801011975.

Almost surely, 2^{52120533140240} 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 52120533140240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61617206746368).

52120533140240 is an abundant number, since it is smaller than the sum of its proper divisors (71113880352496).

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

52120533140240 is a wasteful number, since it uses less digits than its factorization.

52120533140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65857 (or 65851 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 52120533140240 its reverse (4204133502125), we get a palindrome (56324666642365).

The spelling of 52120533140240 in words is "fifty-two trillion, one hundred twenty billion, five hundred thirty-three million, one hundred forty thousand, two hundred forty".