55072303 has 24 divisors (see below), whose sum is σ = 65899904. Its totient is φ = 45714240.

The previous prime is 55072289. The next prime is 55072313. The reversal of 55072303 is 30327055.

55072303 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 55072303 - 2⁹ = 55071791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (55072313) 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 23 ways as a sum of consecutive naturals, for example, 246850 + ... + 247072.

Almost surely, 2^55072303 is an apocalyptic number.

55072303 is a deficient number, since it is larger than the sum of its proper divisors (10827601).

55072303 is a wasteful number, since it uses less digits than its factorization.

55072303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415 (or 404 counting only the distinct ones).

The product of its (nonzero) digits is 3150, while the sum is 25.

The square root of 55072303 is about 7421.0715533540. The cubic root of 55072303 is about 380.4618184823.

Adding to 55072303 its reverse (30327055), we get a palindrome (85399358).

The spelling of 55072303 in words is "fifty-five million, seventy-two thousand, three hundred three".