55985018 has 8 divisors (see below), whose sum is σ = 84014112. Its totient is φ = 27980316.

The previous prime is 55984997. The next prime is 55985057. The reversal of 55985018 is 81058955.

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

It is a Curzon 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, 1571 + ... + 10697.

It is an arithmetic number, because the mean of its divisors is an integer number (10501764).

Almost surely, 2^55985018 is an apocalyptic number.

55985018 is a deficient number, since it is larger than the sum of its proper divisors (28029094).

55985018 is a wasteful number, since it uses less digits than its factorization.

55985018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12196.

The product of its (nonzero) digits is 72000, while the sum is 41.

The square root of 55985018 is about 7482.3136796047. The cubic root of 55985018 is about 382.5521150174.

The spelling of 55985018 in words is "fifty-five million, nine hundred eighty-five thousand, eighteen".