55012558 has 8 divisors (see below), whose sum is σ = 82788552. Its totient is φ = 27416376.

The previous prime is 55012549. The next prime is 55012589. The reversal of 55012558 is 85521055.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44185 + ... + 45412.

It is an arithmetic number, because the mean of its divisors is an integer number (10348569).

Almost surely, 2^55012558 is an apocalyptic number.

55012558 is a deficient number, since it is larger than the sum of its proper divisors (27775994).

55012558 is a wasteful number, since it uses less digits than its factorization.

55012558 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89906.

The product of its (nonzero) digits is 10000, while the sum is 31.

The square root of 55012558 is about 7417.0450989596. The cubic root of 55012558 is about 380.3241877990.

The spelling of 55012558 in words is "fifty-five million, twelve thousand, five hundred fifty-eight".