52120262540 has 48 divisors (see below), whose sum is σ = 111691524672. Its totient is φ = 20422861056.

The previous prime is 52120262539. The next prime is 52120262567. The reversal of 52120262540 is 4526202125.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 647822 + ... + 723818.

It is an arithmetic number, because the mean of its divisors is an integer number (2326906764).

Almost surely, 2^52120262540 is an apocalyptic number.

It is an amenable number.

52120262540 is an abundant number, since it is smaller than the sum of its proper divisors (59571262132).

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

52120262540 is a wasteful number, since it uses less digits than its factorization.

52120262540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76706 (or 76704 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 52120262540 its reverse (4526202125), we get a palindrome (56646464665).

The spelling of 52120262540 in words is "fifty-two billion, one hundred twenty million, two hundred sixty-two thousand, five hundred forty".