53531140545 has 16 divisors (see below), whose sum is σ = 95166472320. Its totient is φ = 28549941552.

The previous prime is 53531140543. The next prime is 53531140561. The reversal of 53531140545 is 54504113535.

53531140545 is a `hidden beast` number, since 53 + 53 + 1 + 14 + 0 + 545 = 666.

It is not a de Polignac number, because 53531140545 - 2¹ = 53531140543 is a prime.

It is not an unprimeable number, because it can be changed into a prime (53531140543) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 198263349 + ... + 198263618.

It is an arithmetic number, because the mean of its divisors is an integer number (5947904520).

Almost surely, 2^53531140545 is an apocalyptic number.

It is an amenable number.

53531140545 is a deficient number, since it is larger than the sum of its proper divisors (41635331775).

53531140545 is a wasteful number, since it uses less digits than its factorization.

53531140545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 396526981 (or 396526975 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 53531140545 in words is "fifty-three billion, five hundred thirty-one million, one hundred forty thousand, five hundred forty-five".