53122251040 has 96 divisors (see below), whose sum is σ = 129906866880. Its totient is φ = 20503870464.

The previous prime is 53122250989. The next prime is 53122251097. The reversal of 53122251040 is 4015222135.

It is a junction number, because it is equal to n+sod(n) for n = 53122250996 and 53122251014.

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, 13189507 + ... + 13193533.

It is an arithmetic number, because the mean of its divisors is an integer number (1353196530).

Almost surely, 2^53122251040 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 53122251040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (64953433440).

53122251040 is an abundant number, since it is smaller than the sum of its proper divisors (76784615840).

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

53122251040 is a wasteful number, since it uses less digits than its factorization.

53122251040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6914 (or 6906 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 53122251040 its reverse (4015222135), we get a palindrome (57137473175).

The spelling of 53122251040 in words is "fifty-three billion, one hundred twenty-two million, two hundred fifty-one thousand, forty".