53221002140 has 12 divisors (see below), whose sum is σ = 111764104536. Its totient is φ = 21288400848.

The previous prime is 53221002127. The next prime is 53221002161. The reversal of 53221002140 is 4120012235.

It is a Harshad number since it is a multiple of its sum of digits (20), and also a Moran number because the ratio is a prime number: 2661050107 = 53221002140 / (5 + 3 + 2 + 2 + 1 + 0 + 0 + 2 + 1 + 4 + 0).

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, 1330525034 + ... + 1330525073.

It is an arithmetic number, because the mean of its divisors is an integer number (9313675378).

Almost surely, 2^53221002140 is an apocalyptic number.

It is an amenable number.

53221002140 is an abundant number, since it is smaller than the sum of its proper divisors (58543102396).

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

53221002140 is a wasteful number, since it uses less digits than its factorization.

53221002140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2661050116 (or 2661050114 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 53221002140 its reverse (4120012235), we get a palindrome (57341014375).

The spelling of 53221002140 in words is "fifty-three billion, two hundred twenty-one million, two thousand, one hundred forty".