55528275 has 24 divisors (see below), whose sum is σ = 100154304. Its totient is φ = 26922400.

The previous prime is 55528271. The next prime is 55528331. The reversal of 55528275 is 57282555.

It is not a de Polignac number, because 55528275 - 2² = 55528271 is a prime.

It is not an unprimeable number, because it can be changed into a prime (55528271) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 32829 + ... + 34478.

It is an arithmetic number, because the mean of its divisors is an integer number (4173096).

Almost surely, 2^55528275 is an apocalyptic number.

55528275 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

55528275 is a deficient number, since it is larger than the sum of its proper divisors (44626029).

55528275 is a wasteful number, since it uses less digits than its factorization.

55528275 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67331 (or 67326 counting only the distinct ones).

The product of its digits is 140000, while the sum is 39.

The square root of 55528275 is about 7451.7296649838. The cubic root of 55528275 is about 381.5089470775.

The spelling of 55528275 in words is "fifty-five million, five hundred twenty-eight thousand, two hundred seventy-five".