53561155511 has 2 divisors, whose sum is σ = 53561155512. Its totient is φ = 53561155510.

The previous prime is 53561155499. The next prime is 53561155523. The reversal of 53561155511 is 11555116535.

It is a balanced prime because it is at equal distance from previous prime (53561155499) and next prime (53561155523).

It is a cyclic number.

It is not a de Polignac number, because 53561155511 - 2²² = 53556961207 is a prime.

It is a super-2 number, since 2×53561155511² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (53561185511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26780577755 + 26780577756.

It is an arithmetic number, because the mean of its divisors is an integer number (26780577756).

Almost surely, 2^53561155511 is an apocalyptic number.

53561155511 is a deficient number, since it is larger than the sum of its proper divisors (1).

53561155511 is an equidigital number, since it uses as much as digits as its factorization.

53561155511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56250, while the sum is 38.

The spelling of 53561155511 in words is "fifty-three billion, five hundred sixty-one million, one hundred fifty-five thousand, five hundred eleven".