31050145422552 has 32 divisors (see below), whose sum is σ = 77633525767680. Its totient is φ = 10348960179360.

The previous prime is 31050145422481. The next prime is 31050145422553. The reversal of 31050145422552 is 25522454105013.

It is a super-2 number, since 2×31050145422552² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 31050145422552.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31050145422553) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67785408 + ... + 68241935.

It is an arithmetic number, because the mean of its divisors is an integer number (2426047680240).

Almost surely, 2^{31050145422552} is an apocalyptic number.

It is an amenable number.

31050145422552 is an abundant number, since it is smaller than the sum of its proper divisors (46583380345128).

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

31050145422552 is a wasteful number, since it uses less digits than its factorization.

31050145422552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136036863 (or 136036859 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 39.

Adding to 31050145422552 its reverse (25522454105013), we get a palindrome (56572599527565).

The spelling of 31050145422552 in words is "thirty-one trillion, fifty billion, one hundred forty-five million, four hundred twenty-two thousand, five hundred fifty-two".