55440305145031 has 2 divisors, whose sum is σ = 55440305145032. Its totient is φ = 55440305145030.

The previous prime is 55440305145019. The next prime is 55440305145047. The reversal of 55440305145031 is 13054150304455.

55440305145031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55440305145031 - 2⁹ = 55440305144519 is a prime.

It is a super-2 number, since 2×55440305145031² (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 (55440305145131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27720152572515 + 27720152572516.

It is an arithmetic number, because the mean of its divisors is an integer number (27720152572516).

Almost surely, 2^{55440305145031} is an apocalyptic number.

55440305145031 is a deficient number, since it is larger than the sum of its proper divisors (1).

55440305145031 is an equidigital number, since it uses as much as digits as its factorization.

55440305145031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360000, while the sum is 40.

Adding to 55440305145031 its reverse (13054150304455), we get a palindrome (68494455449486).

The spelling of 55440305145031 in words is "fifty-five trillion, four hundred forty billion, three hundred five million, one hundred forty-five thousand, thirty-one".