51100230 has 32 divisors (see below), whose sum is σ = 124475904. Its totient is φ = 13422816.

The previous prime is 51100229. The next prime is 51100237. The reversal of 51100230 is 3200115.

51100230 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×51100230² = 5222467012105800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100237) 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, 10702 + ... + 14721.

It is an arithmetic number, because the mean of its divisors is an integer number (3889872).

Almost surely, 2^51100230 is an apocalyptic number.

51100230 is an abundant number, since it is smaller than the sum of its proper divisors (73375674).

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

51100230 is a wasteful number, since it uses less digits than its factorization.

51100230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25500.

The product of its (nonzero) digits is 30, while the sum is 12.

The square root of 51100230 is about 7148.4424877032. The cubic root of 51100230 is about 371.0857564587.

Adding to 51100230 its reverse (3200115), we get a palindrome (54300345).

The spelling of 51100230 in words is "fifty-one million, one hundred thousand, two hundred thirty".