55038440767 has 2 divisors, whose sum is σ = 55038440768. Its totient is φ = 55038440766.

The previous prime is 55038440759. The next prime is 55038440789. The reversal of 55038440767 is 76704483055.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 55038440767 - 2³ = 55038440759 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55038440767.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (55038410767) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27519220383 + 27519220384.

It is an arithmetic number, because the mean of its divisors is an integer number (27519220384).

Almost surely, 2^55038440767 is an apocalyptic number.

55038440767 is a deficient number, since it is larger than the sum of its proper divisors (1).

55038440767 is an equidigital number, since it uses as much as digits as its factorization.

55038440767 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2822400, while the sum is 49.

The spelling of 55038440767 in words is "fifty-five billion, thirty-eight million, four hundred forty thousand, seven hundred sixty-seven".