55802558 has 32 divisors (see below), whose sum is σ = 99525888. Its totient is φ = 22968000.

The previous prime is 55802543. The next prime is 55802567. The reversal of 55802558 is 85520855.

It is a super-2 number, since 2×55802558² = 6227850958686728, which contains 22 as substring.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37733 + ... + 39183.

It is an arithmetic number, because the mean of its divisors is an integer number (3110184).

Almost surely, 2^55802558 is an apocalyptic number.

55802558 is a deficient number, since it is larger than the sum of its proper divisors (43723330).

55802558 is a wasteful number, since it uses less digits than its factorization.

55802558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1568.

The product of its (nonzero) digits is 80000, while the sum is 38.

The square root of 55802558 is about 7470.1109764180. The cubic root of 55802558 is about 382.1360726095.

The spelling of 55802558 in words is "fifty-five million, eight hundred two thousand, five hundred fifty-eight".