55248728 has 16 divisors (see below), whose sum is σ = 103772760. Its totient is φ = 27576000.

The previous prime is 55248709. The next prime is 55248757. The reversal of 55248728 is 82784255.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938 + ... + 10553.

Almost surely, 2^55248728 is an apocalyptic number.

It is an amenable number.

55248728 is a deficient number, since it is larger than the sum of its proper divisors (48524032).

55248728 is a wasteful number, since it uses less digits than its factorization.

55248728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12098 (or 12094 counting only the distinct ones).

The product of its digits is 179200, while the sum is 41.

The square root of 55248728 is about 7432.9488091874. The cubic root of 55248728 is about 380.8676572521.

The spelling of 55248728 in words is "fifty-five million, two hundred forty-eight thousand, seven hundred twenty-eight".