55247998 has 16 divisors (see below), whose sum is σ = 89369280. Its totient is φ = 25464096.

The previous prime is 55247981. The next prime is 55248023. The reversal of 55247998 is 89974255.

55247998 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 7 ways as a sum of consecutive naturals, for example, 36411 + ... + 37897.

It is an arithmetic number, because the mean of its divisors is an integer number (5585580).

Almost surely, 2^55247998 is an apocalyptic number.

55247998 is a deficient number, since it is larger than the sum of its proper divisors (34121282).

55247998 is a wasteful number, since it uses less digits than its factorization.

55247998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2931.

The product of its digits is 907200, while the sum is 49.

The square root of 55247998 is about 7432.8997033459. The cubic root of 55247998 is about 380.8659797799.

The spelling of 55247998 in words is "fifty-five million, two hundred forty-seven thousand, nine hundred ninety-eight".