55003398 has 32 divisors (see below), whose sum is σ = 116834400. Its totient is φ = 17203200.

The previous prime is 55003379. The next prime is 55003409. The reversal of 55003398 is 89330055.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45198 + ... + 46398.

It is an arithmetic number, because the mean of its divisors is an integer number (3651075).

Almost surely, 2^55003398 is an apocalyptic number.

55003398 is an abundant number, since it is smaller than the sum of its proper divisors (61831002).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

55003398 is a wasteful number, since it uses less digits than its factorization.

55003398 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672.

The product of its (nonzero) digits is 16200, while the sum is 33.

The square root of 55003398 is about 7416.4275766706. The cubic root of 55003398 is about 380.3030776921.

The spelling of 55003398 in words is "fifty-five million, three thousand, three hundred ninety-eight".