53553555511 has 16 divisors (see below), whose sum is σ = 56169471744. Its totient is φ = 50962279104.

The previous prime is 53553555481. The next prime is 53553555547. The reversal of 53553555511 is 11555535535.

It is a cyclic number.

It is not a de Polignac number, because 53553555511 - 2¹⁹ = 53553031223 is a prime.

It is a super-2 number, since 2×53553555511² (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 (53553555551) 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, 3639976 + ... + 3654658.

It is an arithmetic number, because the mean of its divisors is an integer number (3510591984).

Almost surely, 2^53553555511 is an apocalyptic number.

53553555511 is a deficient number, since it is larger than the sum of its proper divisors (2615916233).

53553555511 is a wasteful number, since it uses less digits than its factorization.

53553555511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15510.

The product of its digits is 703125, while the sum is 43.

The spelling of 53553555511 in words is "fifty-three billion, five hundred fifty-three million, five hundred fifty-five thousand, five hundred eleven".