53551431140 has 12 divisors (see below), whose sum is σ = 112458005436. Its totient is φ = 21420572448.

The previous prime is 53551431137. The next prime is 53551431161. The reversal of 53551431140 is 4113415535.

It can be written as a sum of positive squares in 2 ways, for example, as 8367126784 + 45184304356 = 91472^2 + 212566^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53551431097 and 53551431106.

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, 1338785759 + ... + 1338785798.

It is an arithmetic number, because the mean of its divisors is an integer number (9371500453).

Almost surely, 2^53551431140 is an apocalyptic number.

It is an amenable number.

53551431140 is an abundant number, since it is smaller than the sum of its proper divisors (58906574296).

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

53551431140 is a wasteful number, since it uses less digits than its factorization.

53551431140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677571566 (or 2677571564 counting only the distinct ones).

The product of its (nonzero) digits is 18000, while the sum is 32.

Adding to 53551431140 its reverse (4113415535), we get a palindrome (57664846675).

The spelling of 53551431140 in words is "fifty-three billion, five hundred fifty-one million, four hundred thirty-one thousand, one hundred forty".