2870400055 has 4 divisors (see below), whose sum is σ = 3444480072. Its totient is φ = 2296320040.

The previous prime is 2870400031. The next prime is 2870400059. The reversal of 2870400055 is 5500040782.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 5500040782 = 2 ⋅2750020391.

It is not a de Polignac number, because 2870400055 - 2¹³ = 2870391863 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2870400059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 287040001 + ... + 287040010.

It is an arithmetic number, because the mean of its divisors is an integer number (861120018).

Almost surely, 2^2870400055 is an apocalyptic number.

2870400055 is a deficient number, since it is larger than the sum of its proper divisors (574080017).

2870400055 is an equidigital number, since it uses as much as digits as its factorization.

2870400055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574080016.

The product of its (nonzero) digits is 11200, while the sum is 31.

The square root of 2870400055 is about 53576.1145940987. The cubic root of 2870400055 is about 1421.1747296539.

The spelling of 2870400055 in words is "two billion, eight hundred seventy million, four hundred thousand, fifty-five".