51502130 has 16 divisors (see below), whose sum is σ = 94677120. Its totient is φ = 20162352.

The previous prime is 51502127. The next prime is 51502133. The reversal of 51502130 is 3120515.

It is an interprime number because it is at equal distance from previous prime (51502127) and next prime (51502133).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51502099 and 51502108.

It is not an unprimeable number, because it can be changed into a prime (51502133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 54320 + ... + 55259.

It is an arithmetic number, because the mean of its divisors is an integer number (5917320).

Almost surely, 2^51502130 is an apocalyptic number.

51502130 is a deficient number, since it is larger than the sum of its proper divisors (43174990).

51502130 is a wasteful number, since it uses less digits than its factorization.

51502130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109633.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 51502130 is about 7176.4984498013. The cubic root of 51502130 is about 372.0560722121.

Adding to 51502130 its reverse (3120515), we get a palindrome (54622645).

The spelling of 51502130 in words is "fifty-one million, five hundred two thousand, one hundred thirty".