55514341891511 has 2 divisors, whose sum is σ = 55514341891512. Its totient is φ = 55514341891510.

The previous prime is 55514341891453. The next prime is 55514341891571. The reversal of 55514341891511 is 11519814341555.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55514341891511 - 2¹⁰ = 55514341890487 is a prime.

It is a super-2 number, since 2×55514341891511² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55514341891571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27757170945755 + 27757170945756.

It is an arithmetic number, because the mean of its divisors is an integer number (27757170945756).

Almost surely, 2^{55514341891511} is an apocalyptic number.

55514341891511 is a deficient number, since it is larger than the sum of its proper divisors (1).

55514341891511 is an equidigital number, since it uses as much as digits as its factorization.

55514341891511 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2160000, while the sum is 53.

The spelling of 55514341891511 in words is "fifty-five trillion, five hundred fourteen billion, three hundred forty-one million, eight hundred ninety-one thousand, five hundred eleven".