55344721417631 has 2 divisors, whose sum is σ = 55344721417632. Its totient is φ = 55344721417630.

The previous prime is 55344721417619. The next prime is 55344721417747. The reversal of 55344721417631 is 13671412744355.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55344721417631 - 2¹⁴ = 55344721401247 is a prime.

It is a super-2 number, since 2×55344721417631² (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 (55344721417031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27672360708815 + 27672360708816.

It is an arithmetic number, because the mean of its divisors is an integer number (27672360708816).

Almost surely, 2^{55344721417631} is an apocalyptic number.

55344721417631 is a deficient number, since it is larger than the sum of its proper divisors (1).

55344721417631 is an equidigital number, since it uses as much as digits as its factorization.

55344721417631 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8467200, while the sum is 53.

The spelling of 55344721417631 in words is "fifty-five trillion, three hundred forty-four billion, seven hundred twenty-one million, four hundred seventeen thousand, six hundred thirty-one".