52252202640 has 80 divisors (see below), whose sum is σ = 176707457856. Its totient is φ = 12667200000.

The previous prime is 52252202623. The next prime is 52252202687. The reversal of 52252202640 is 4620225225.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 52252202598 and 52252202607.

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, 9893611 + ... + 9898890.

Almost surely, 2^52252202640 is an apocalyptic number.

It is an amenable number.

52252202640 is an abundant number, since it is smaller than the sum of its proper divisors (124455255216).

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

52252202640 is a wasteful number, since it uses less digits than its factorization.

52252202640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19792528 (or 19792522 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 30.

Adding to 52252202640 its reverse (4620225225), we get a palindrome (56872427865).

The spelling of 52252202640 in words is "fifty-two billion, two hundred fifty-two million, two hundred two thousand, six hundred forty".