52021121140 has 12 divisors (see below), whose sum is σ = 109244354436. Its totient is φ = 20808448448.

The previous prime is 52021121093. The next prime is 52021121177. The reversal of 52021121140 is 4112112025.

It can be written as a sum of positive squares in 2 ways, for example, as 6888668004 + 45132453136 = 82998^2 + 212444^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1300528009 + ... + 1300528048.

It is an arithmetic number, because the mean of its divisors is an integer number (9103696203).

Almost surely, 2^52021121140 is an apocalyptic number.

It is an amenable number.

52021121140 is an abundant number, since it is smaller than the sum of its proper divisors (57223233296).

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

52021121140 is a wasteful number, since it uses less digits than its factorization.

52021121140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2601056066 (or 2601056064 counting only the distinct ones).

The product of its (nonzero) digits is 160, while the sum is 19.

Adding to 52021121140 its reverse (4112112025), we get a palindrome (56133233165).

The spelling of 52021121140 in words is "fifty-two billion, twenty-one million, one hundred twenty-one thousand, one hundred forty".