55802 has 4 divisors (see below), whose sum is σ = 83706. Its totient is φ = 27900.

The previous prime is 55799. The next prime is 55807. The reversal of 55802 is 20855.

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

It can be written as a sum of positive squares in only one way, i.e., 36481 + 19321 = 191^2 + 139^2 .

It is a super-2 number, since 2×55802² = 6227726408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (55807) by changing a digit.

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, 13949 + ... + 13952.

2⁵⁵⁸⁰² is an apocalyptic number.

55802 is a deficient number, since it is larger than the sum of its proper divisors (27904).

55802 is a wasteful number, since it uses less digits than its factorization.

55802 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27903.

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 55802 is about 236.2244695200. The cubic root of 55802 is about 38.2134798877.

The spelling of 55802 in words is "fifty-five thousand, eight hundred two".