55728298 has 4 divisors (see below), whose sum is σ = 83592450. Its totient is φ = 27864148.

The previous prime is 55728293. The next prime is 55728313. The reversal of 55728298 is 89282755.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 52606009 + 3122289 = 7253^2 + 1767^2 .

It is not an unprimeable number, because it can be changed into a prime (55728293) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13932073 + ... + 13932076.

Almost surely, 2^55728298 is an apocalyptic number.

55728298 is a deficient number, since it is larger than the sum of its proper divisors (27864152).

55728298 is a wasteful number, since it uses less digits than its factorization.

55728298 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27864151.

The product of its digits is 403200, while the sum is 46.

The square root of 55728298 is about 7465.1388466659. The cubic root of 55728298 is about 381.9664864653.

The spelling of 55728298 in words is "fifty-five million, seven hundred twenty-eight thousand, two hundred ninety-eight".