55870863 has 8 divisors (see below), whose sum is σ = 74530176. Its totient is φ = 37229400.

The previous prime is 55870861. The next prime is 55870879. The reversal of 55870863 is 36807855.

55870863 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 55870863 - 2¹ = 55870861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55870861) 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 7 ways as a sum of consecutive naturals, for example, 7198 + ... + 12788.

It is an arithmetic number, because the mean of its divisors is an integer number (9316272).

Almost surely, 2^55870863 is an apocalyptic number.

55870863 is a deficient number, since it is larger than the sum of its proper divisors (18659313).

55870863 is a wasteful number, since it uses less digits than its factorization.

55870863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8925.

The product of its (nonzero) digits is 201600, while the sum is 42.

The square root of 55870863 is about 7474.6814647850. The cubic root of 55870863 is about 382.2919266460.

The spelling of 55870863 in words is "fifty-five million, eight hundred seventy thousand, eight hundred sixty-three".