55030386 has 8 divisors (see below), whose sum is σ = 110060784. Its totient is φ = 18343460.

The previous prime is 55030351. The next prime is 55030387. The reversal of 55030386 is 68303055.

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

55030386 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (55030387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4585860 + ... + 4585871.

It is an arithmetic number, because the mean of its divisors is an integer number (13757598).

Almost surely, 2^55030386 is an apocalyptic number.

55030386 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55030386 is a wasteful number, since it uses less digits than its factorization.

55030386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9171736.

The product of its (nonzero) digits is 10800, while the sum is 30.

The square root of 55030386 is about 7418.2468279237. The cubic root of 55030386 is about 380.3652674333.

The spelling of 55030386 in words is "fifty-five million, thirty thousand, three hundred eighty-six".