51230100 has 36 divisors (see below), whose sum is σ = 148226624. Its totient is φ = 13661280.

The previous prime is 51230083. The next prime is 51230117. The reversal of 51230100 is 103215.

51230100 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 (51230083) and next prime (51230117).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

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, 85084 + ... + 85683.

Almost surely, 2^51230100 is an apocalyptic number.

51230100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51230100 is an abundant number, since it is smaller than the sum of its proper divisors (96996524).

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

51230100 is a wasteful number, since it uses less digits than its factorization.

51230100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170784 (or 170777 counting only the distinct ones).

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

The square root of 51230100 is about 7157.5205204037. The cubic root of 51230100 is about 371.3998590090.

Adding to 51230100 its reverse (103215), we get a palindrome (51333315).

The spelling of 51230100 in words is "fifty-one million, two hundred thirty thousand, one hundred".