55501018 has 8 divisors (see below), whose sum is σ = 83646720. Its totient is φ = 27618780.

The previous prime is 55500989. The next prime is 55501027. The reversal of 55501018 is 81010555.

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

It is a junction number, because it is equal to n+sod(n) for n = 55500983 and 55501001.

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, 65338 + ... + 66181.

It is an arithmetic number, because the mean of its divisors is an integer number (10455840).

Almost surely, 2^55501018 is an apocalyptic number.

55501018 is a deficient number, since it is larger than the sum of its proper divisors (28145702).

55501018 is a wasteful number, since it uses less digits than its factorization.

55501018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131732.

The product of its (nonzero) digits is 1000, while the sum is 25.

The square root of 55501018 is about 7449.9005362488. The cubic root of 55501018 is about 381.4465134716.

The spelling of 55501018 in words is "fifty-five million, five hundred one thousand, eighteen".