51550303 has 12 divisors (see below), whose sum is σ = 61902912. Its totient is φ = 42759360.

The previous prime is 51550297. The next prime is 51550309. The reversal of 51550303 is 30305515.

It is a happy number.

51550303 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51550297) and next prime (51550309).

It is not a de Polignac number, because 51550303 - 2²⁵ = 17995871 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 (51550309) 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 11 ways as a sum of consecutive naturals, for example, 15450 + ... + 18487.

It is an arithmetic number, because the mean of its divisors is an integer number (5158576).

Almost surely, 2^51550303 is an apocalyptic number.

51550303 is a deficient number, since it is larger than the sum of its proper divisors (10352609).

51550303 is a wasteful number, since it uses less digits than its factorization.

51550303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33982 (or 33975 counting only the distinct ones).

The product of its (nonzero) digits is 1125, while the sum is 22.

The square root of 51550303 is about 7179.8539678743. The cubic root of 51550303 is about 372.1720381078.

Adding to 51550303 its reverse (30305515), we get a palindrome (81855818).

The spelling of 51550303 in words is "fifty-one million, five hundred fifty thousand, three hundred three".