53545121013 has 16 divisors (see below), whose sum is σ = 72157081536. Its totient is φ = 35315510400.

The previous prime is 53545121011. The next prime is 53545121041. The reversal of 53545121013 is 31012154535.

It is not a de Polignac number, because 53545121013 - 2¹ = 53545121011 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53545121011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319881 + ... + 457617.

It is an arithmetic number, because the mean of its divisors is an integer number (4509817596).

Almost surely, 2^53545121013 is an apocalyptic number.

It is an amenable number.

53545121013 is a deficient number, since it is larger than the sum of its proper divisors (18611960523).

53545121013 is a wasteful number, since it uses less digits than its factorization.

53545121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139124.

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 53545121013 its reverse (31012154535), we get a palindrome (84557275548).

The spelling of 53545121013 in words is "fifty-three billion, five hundred forty-five million, one hundred twenty-one thousand, thirteen".