55745887051815 has 64 divisors (see below), whose sum is σ = 91952214681600. Its totient is φ = 28817673108480.

The previous prime is 55745887051801. The next prime is 55745887051871. The reversal of 55745887051815 is 51815078854755.

55745887051815 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55745887051815 - 2¹¹ = 55745887049767 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 55745887051815.

It is a congruent number.

It is an unprimeable number.

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 in 63 ways as a sum of consecutive naturals, for example, 2042035036 + ... + 2042062334.

It is an arithmetic number, because the mean of its divisors is an integer number (1436753354400).

Almost surely, 2^{55745887051815} is an apocalyptic number.

55745887051815 is a deficient number, since it is larger than the sum of its proper divisors (36206327629785).

55745887051815 is a wasteful number, since it uses less digits than its factorization.

55745887051815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41192.

The product of its (nonzero) digits is 313600000, while the sum is 69.

The spelling of 55745887051815 in words is "fifty-five trillion, seven hundred forty-five billion, eight hundred eighty-seven million, fifty-one thousand, eight hundred fifteen".