55827858 has 16 divisors (see below), whose sum is σ = 112219200. Its totient is φ = 18515376.

The previous prime is 55827841. The next prime is 55827859. The reversal of 55827858 is 85872855.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (55827859) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22185 + ... + 24572.

It is an arithmetic number, because the mean of its divisors is an integer number (7013700).

Almost surely, 2^55827858 is an apocalyptic number.

55827858 is an abundant number, since it is smaller than the sum of its proper divisors (56391342).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55827858 is a wasteful number, since it uses less digits than its factorization.

55827858 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46961.

The product of its digits is 896000, while the sum is 48.

The square root of 55827858 is about 7471.8041997900. The cubic root of 55827858 is about 382.1938153740.

The spelling of 55827858 in words is "fifty-five million, eight hundred twenty-seven thousand, eight hundred fifty-eight".