55444641502511 has 2 divisors, whose sum is σ = 55444641502512. Its totient is φ = 55444641502510.

The previous prime is 55444641502447. The next prime is 55444641502529. The reversal of 55444641502511 is 11520514644455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55444641502511 - 2⁶ = 55444641502447 is a prime.

It is a super-3 number, since 3×55444641502511³ (a number of 42 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55444641502111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27722320751255 + 27722320751256.

It is an arithmetic number, because the mean of its divisors is an integer number (27722320751256).

Almost surely, 2^{55444641502511} is an apocalyptic number.

55444641502511 is a deficient number, since it is larger than the sum of its proper divisors (1).

55444641502511 is an equidigital number, since it uses as much as digits as its factorization.

55444641502511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1920000, while the sum is 47.

The spelling of 55444641502511 in words is "fifty-five trillion, four hundred forty-four billion, six hundred forty-one million, five hundred two thousand, five hundred eleven".