51109303 has 6 divisors (see below), whose sum is σ = 59453736. Its totient is φ = 43807932.

The previous prime is 51109301. The next prime is 51109307. The reversal of 51109303 is 30390115.

It is not a de Polignac number, because 51109303 - 2¹ = 51109301 is a prime.

It is a super-2 number, since 2×51109303² = 5224321706291618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51109301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 521475 + ... + 521572.

It is an arithmetic number, because the mean of its divisors is an integer number (9908956).

Almost surely, 2^51109303 is an apocalyptic number.

51109303 is a deficient number, since it is larger than the sum of its proper divisors (8344433).

51109303 is a wasteful number, since it uses less digits than its factorization.

51109303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1043061 (or 1043054 counting only the distinct ones).

The product of its (nonzero) digits is 405, while the sum is 22.

The square root of 51109303 is about 7149.0770733011. The cubic root of 51109303 is about 371.1077176241.

Adding to 51109303 its reverse (30390115), we get a palindrome (81499418).

The spelling of 51109303 in words is "fifty-one million, one hundred nine thousand, three hundred three".