55073278 has 16 divisors (see below), whose sum is σ = 89356176. Its totient is φ = 25306560.

The previous prime is 55073269. The next prime is 55073303. The reversal of 55073278 is 87237055.

It is a congruent number.

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, 1513 + ... + 10603.

It is an arithmetic number, because the mean of its divisors is an integer number (5584761).

Almost surely, 2^55073278 is an apocalyptic number.

55073278 is a deficient number, since it is larger than the sum of its proper divisors (34282898).

55073278 is a wasteful number, since it uses less digits than its factorization.

55073278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9339.

The product of its (nonzero) digits is 58800, while the sum is 37.

The square root of 55073278 is about 7421.1372443851. The cubic root of 55073278 is about 380.4640637009.

The spelling of 55073278 in words is "fifty-five million, seventy-three thousand, two hundred seventy-eight".