31315550552000 has 448 divisors, whose sum is σ = 91715062053888. Its totient is φ = 10441843200000.

The previous prime is 31315550551993. The next prime is 31315550552003. The reversal of 31315550552000 is 25505551313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31315550552003) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 172653359 + ... + 172834641.

It is an arithmetic number, because the mean of its divisors is an integer number (204721120656).

Almost surely, 2^{31315550552000} 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 31315550552000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (45857531026944).

31315550552000 is an abundant number, since it is smaller than the sum of its proper divisors (60399511501888).

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

31315550552000 is a wasteful number, since it uses less digits than its factorization.

31315550552000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 181485 (or 181465 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 35.

The spelling of 31315550552000 in words is "thirty-one trillion, three hundred fifteen billion, five hundred fifty million, five hundred fifty-two thousand".