51380130 has 32 divisors (see below), whose sum is σ = 123648768. Its totient is φ = 13664000.

The previous prime is 51380111. The next prime is 51380149. The reversal of 51380130 is 3108315.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (51380111) and next prime (51380149).

It is a junction number, because it is equal to n+sod(n) for n = 51380097 and 51380106.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9895 + ... + 14165.

It is an arithmetic number, because the mean of its divisors is an integer number (3864024).

Almost surely, 2^51380130 is an apocalyptic number.

51380130 is an abundant number, since it is smaller than the sum of its proper divisors (72268638).

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

51380130 is a wasteful number, since it uses less digits than its factorization.

51380130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4682.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 51380130 is about 7167.9934430774. The cubic root of 51380130 is about 371.7620602352.

Adding to 51380130 its reverse (3108315), we get a palindrome (54488445).

The spelling of 51380130 in words is "fifty-one million, three hundred eighty thousand, one hundred thirty".