53501432421140 has 48 divisors (see below), whose sum is σ = 122580284238720. Its totient is φ = 19452944695680.

The previous prime is 53501432421113. The next prime is 53501432421161. The reversal of 53501432421140 is 4112423410535.

It is a super-2 number, since 2×53501432421140² (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 53501432421140.

It is a congruent number.

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, 11237600 + ... + 15273719.

It is an arithmetic number, because the mean of its divisors is an integer number (2553755921640).

Almost surely, 2^{53501432421140} is an apocalyptic number.

It is an amenable number.

53501432421140 is an abundant number, since it is smaller than the sum of its proper divisors (69078851817580).

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

53501432421140 is a wasteful number, since it uses less digits than its factorization.

53501432421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26520512 (or 26520510 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 53501432421140 its reverse (4112423410535), we get a palindrome (57613855831675).

The spelling of 53501432421140 in words is "fifty-three trillion, five hundred one billion, four hundred thirty-two million, four hundred twenty-one thousand, one hundred forty".