20120533617250 has 32 divisors (see below), whose sum is σ = 41089787930880. Its totient is φ = 7316557678000.

The previous prime is 20120533617193. The next prime is 20120533617251. The reversal of 20120533617250 is 5271633502102.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (20120533617251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3658276090 + ... + 3658281589.

It is an arithmetic number, because the mean of its divisors is an integer number (1284055872840).

Almost surely, 2^{20120533617250} is an apocalyptic number.

20120533617250 is an abundant number, since it is smaller than the sum of its proper divisors (20969254313630).

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

20120533617250 is a wasteful number, since it uses less digits than its factorization.

20120533617250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7316557707 (or 7316557697 counting only the distinct ones).

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 20120533617250 in words is "twenty trillion, one hundred twenty billion, five hundred thirty-three million, six hundred seventeen thousand, two hundred fifty".