55228115 has 8 divisors (see below), whose sum is σ = 66361680. Its totient is φ = 44123872.

The previous prime is 55228111. The next prime is 55228127. The reversal of 55228115 is 51182255.

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

It is a cyclic number.

It is not a de Polignac number, because 55228115 - 2² = 55228111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55228111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2945 + ... + 10914.

It is an arithmetic number, because the mean of its divisors is an integer number (8295210).

Almost surely, 2^55228115 is an apocalyptic number.

55228115 is a deficient number, since it is larger than the sum of its proper divisors (11133565).

55228115 is a wasteful number, since it uses less digits than its factorization.

55228115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14661.

The product of its digits is 4000, while the sum is 29.

The square root of 55228115 is about 7431.5620834384. The cubic root of 55228115 is about 380.8202848095.

The spelling of 55228115 in words is "fifty-five million, two hundred twenty-eight thousand, one hundred fifteen".