55272398 has 4 divisors (see below), whose sum is σ = 82908600. Its totient is φ = 27636198.

The previous prime is 55272383. The next prime is 55272403. The reversal of 55272398 is 89327255.

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

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, 13818098 + ... + 13818101.

It is an arithmetic number, because the mean of its divisors is an integer number (20727150).

Almost surely, 2^55272398 is an apocalyptic number.

55272398 is a deficient number, since it is larger than the sum of its proper divisors (27636202).

55272398 is a wasteful number, since it uses less digits than its factorization.

55272398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27636201.

The product of its digits is 151200, while the sum is 41.

The square root of 55272398 is about 7434.5408735173. The cubic root of 55272398 is about 380.9220407082.

The spelling of 55272398 in words is "fifty-five million, two hundred seventy-two thousand, three hundred ninety-eight".