53042140040 has 16 divisors (see below), whose sum is σ = 119344815180. Its totient is φ = 21216856000.

The previous prime is 53042140031. The next prime is 53042140051. The reversal of 53042140040 is 4004124035.

It can be written as a sum of positive squares in 2 ways, for example, as 53027957284 + 14182756 = 230278^2 + 3766^2 .

It is a junction number, because it is equal to n+sod(n) for n = 53042139988 and 53042140015.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 663026711 + ... + 663026790.

Almost surely, 2^53042140040 is an apocalyptic number.

It is an amenable number.

53042140040 is an abundant number, since it is smaller than the sum of its proper divisors (66302675140).

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

53042140040 is a wasteful number, since it uses less digits than its factorization.

53042140040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1326053512 (or 1326053508 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 23.

Adding to 53042140040 its reverse (4004124035), we get a palindrome (57046264075).

The spelling of 53042140040 in words is "fifty-three billion, forty-two million, one hundred forty thousand, forty".