53555140505 has 8 divisors (see below), whose sum is σ = 64297854600. Its totient is φ = 42822988416.

The previous prime is 53555140493. The next prime is 53555140543. The reversal of 53555140505 is 50504155535.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 8842769296 + 44712371209 = 94036^2 + 211453^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 53555140505 - 2¹⁰ = 53555139481 is a prime.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 2629340 + ... + 2649629.

It is an arithmetic number, because the mean of its divisors is an integer number (8037231825).

Almost surely, 2^53555140505 is an apocalyptic number.

It is an amenable number.

53555140505 is a deficient number, since it is larger than the sum of its proper divisors (10742714095).

53555140505 is a wasteful number, since it uses less digits than its factorization.

53555140505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5281003.

The product of its (nonzero) digits is 187500, while the sum is 38.

The spelling of 53555140505 in words is "fifty-three billion, five hundred fifty-five million, one hundred forty thousand, five hundred five".