53105555511 has 12 divisors (see below), whose sum is σ = 76714876888. Its totient is φ = 35400541104.

The previous prime is 53105555509. The next prime is 53105555533. The reversal of 53105555511 is 11555550135.

53105555511 is a `hidden beast` number, since 53 + 1 + 0 + 5 + 55 + 551 + 1 = 666.

It is not a de Polignac number, because 53105555511 - 2¹ = 53105555509 is a prime.

It is a super-2 number, since 2×53105555511² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (53105555501) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 154840 + ... + 360813.

Almost surely, 2^53105555511 is an apocalyptic number.

53105555511 is a deficient number, since it is larger than the sum of its proper divisors (23609321377).

53105555511 is a wasteful number, since it uses less digits than its factorization.

53105555511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527102 (or 527099 counting only the distinct ones).

The product of its (nonzero) digits is 46875, while the sum is 36.

The spelling of 53105555511 in words is "fifty-three billion, one hundred five million, five hundred fifty-five thousand, five hundred eleven".