55828155 has 8 divisors (see below), whose sum is σ = 89325072. Its totient is φ = 29775008.

The previous prime is 55828141. The next prime is 55828177. The reversal of 55828155 is 55182855.

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 55828155 - 2¹³ = 55819963 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1860924 + ... + 1860953.

It is an arithmetic number, because the mean of its divisors is an integer number (11165634).

Almost surely, 2^55828155 is an apocalyptic number.

55828155 is a deficient number, since it is larger than the sum of its proper divisors (33496917).

55828155 is a wasteful number, since it uses less digits than its factorization.

55828155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3721885.

The product of its digits is 80000, while the sum is 39.

The square root of 55828155 is about 7471.8240744814. The cubic root of 55828155 is about 382.1944931203.

The spelling of 55828155 in words is "fifty-five million, eight hundred twenty-eight thousand, one hundred fifty-five".