55440305145019 has 2 divisors, whose sum is σ = 55440305145020. Its totient is φ = 55440305145018.

The previous prime is 55440305144993. The next prime is 55440305145031. The reversal of 55440305145019 is 91054150304455.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 55440305145019 - 2⁷ = 55440305144891 is a prime.

It is a super-2 number, since 2×55440305145019² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 55440305145019.

It is not a weakly prime, because it can be changed into another prime (55440305145919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27720152572509 + 27720152572510.

It is an arithmetic number, because the mean of its divisors is an integer number (27720152572510).

Almost surely, 2^{55440305145019} is an apocalyptic number.

55440305145019 is a deficient number, since it is larger than the sum of its proper divisors (1).

55440305145019 is an equidigital number, since it uses as much as digits as its factorization.

55440305145019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080000, while the sum is 46.

The spelling of 55440305145019 in words is "fifty-five trillion, four hundred forty billion, three hundred five million, one hundred forty-five thousand, nineteen".