55028156 has 6 divisors (see below), whose sum is σ = 96299280. Its totient is φ = 27514076.

The previous prime is 55028143. The next prime is 55028173. The reversal of 55028156 is 65182055.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6878516 + ... + 6878523.

It is an arithmetic number, because the mean of its divisors is an integer number (16049880).

Almost surely, 2^55028156 is an apocalyptic number.

It is an amenable number.

55028156 is a deficient number, since it is larger than the sum of its proper divisors (41271124).

55028156 is a wasteful number, since it uses less digits than its factorization.

55028156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13757043 (or 13757041 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The square root of 55028156 is about 7418.0965213456. The cubic root of 55028156 is about 380.3601295083.

The spelling of 55028156 in words is "fifty-five million, twenty-eight thousand, one hundred fifty-six".