55331086 has 4 divisors (see below), whose sum is σ = 82996632. Its totient is φ = 27665542.

The previous prime is 55331071. The next prime is 55331093. The reversal of 55331086 is 68013355.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13832770 + ... + 13832773.

It is an arithmetic number, because the mean of its divisors is an integer number (20749158).

Almost surely, 2^55331086 is an apocalyptic number.

55331086 is a deficient number, since it is larger than the sum of its proper divisors (27665546).

55331086 is a wasteful number, since it uses less digits than its factorization.

55331086 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27665545.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 55331086 is about 7438.4868084846. The cubic root of 55331086 is about 381.0568134932.

The spelling of 55331086 in words is "fifty-five million, three hundred thirty-one thousand, eighty-six".