55203357 has 16 divisors (see below), whose sum is σ = 82165248. Its totient is φ = 32677680.

The previous prime is 55203329. The next prime is 55203359. The reversal of 55203357 is 75330255.

55203357 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 55203357 - 2⁸ = 55203101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55203359) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 18033 + ... + 20870.

It is an arithmetic number, because the mean of its divisors is an integer number (5135328).

Almost surely, 2^55203357 is an apocalyptic number.

It is an amenable number.

55203357 is a deficient number, since it is larger than the sum of its proper divisors (26961891).

55203357 is a wasteful number, since it uses less digits than its factorization.

55203357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38960.

The product of its (nonzero) digits is 15750, while the sum is 30.

The square root of 55203357 is about 7429.8961634736. The cubic root of 55203357 is about 380.7633708155.

The spelling of 55203357 in words is "fifty-five million, two hundred three thousand, three hundred fifty-seven".