55870159 has 4 divisors (see below), whose sum is σ = 55930104. Its totient is φ = 55810216.

The previous prime is 55870079. The next prime is 55870163. The reversal of 55870159 is 95107855.

55870159 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 95107855 = 5 ⋅19021571.

It is a cyclic number.

It is not a de Polignac number, because 55870159 - 2¹⁵ = 55837391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55870189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28552 + ... + 30445.

It is an arithmetic number, because the mean of its divisors is an integer number (13982526).

Almost surely, 2^55870159 is an apocalyptic number.

55870159 is a deficient number, since it is larger than the sum of its proper divisors (59945).

55870159 is an equidigital number, since it uses as much as digits as its factorization.

55870159 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59944.

The product of its (nonzero) digits is 63000, while the sum is 40.

The square root of 55870159 is about 7474.6343723289. The cubic root of 55870159 is about 382.2903209513.

Subtracting 55870159 from its reverse (95107855), we obtain a square (39237696 = 6264²).

The spelling of 55870159 in words is "fifty-five million, eight hundred seventy thousand, one hundred fifty-nine".