55428276 has 12 divisors (see below), whose sum is σ = 129332672. Its totient is φ = 18476088.

The previous prime is 55428259. The next prime is 55428281. The reversal of 55428276 is 67282455.

55428276 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309500 + ... + 2309523.

Almost surely, 2^55428276 is an apocalyptic number.

It is an amenable number.

55428276 is an abundant number, since it is smaller than the sum of its proper divisors (73904396).

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

55428276 is a wasteful number, since it uses less digits than its factorization.

55428276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4619030 (or 4619028 counting only the distinct ones).

The product of its digits is 134400, while the sum is 39.

The square root of 55428276 is about 7445.0168569319. The cubic root of 55428276 is about 381.2797939271.

The spelling of 55428276 in words is "fifty-five million, four hundred twenty-eight thousand, two hundred seventy-six".