55958851 has 4 divisors (see below), whose sum is σ = 60263392. Its totient is φ = 51654312.

The previous prime is 55958827. The next prime is 55958879. The reversal of 55958851 is 15885955.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-55958851 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55958051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2152251 + ... + 2152276.

It is an arithmetic number, because the mean of its divisors is an integer number (15065848).

Almost surely, 2^55958851 is an apocalyptic number.

55958851 is a deficient number, since it is larger than the sum of its proper divisors (4304541).

55958851 is a wasteful number, since it uses less digits than its factorization.

55958851 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4304540.

The product of its digits is 360000, while the sum is 46.

The square root of 55958851 is about 7480.5648850872. The cubic root of 55958851 is about 382.4925050150.

The spelling of 55958851 in words is "fifty-five million, nine hundred fifty-eight thousand, eight hundred fifty-one".