51130682 has 4 divisors (see below), whose sum is σ = 76696026. Its totient is φ = 25565340.

The previous prime is 51130643. The next prime is 51130711. The reversal of 51130682 is 28603115.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 44102881 + 7027801 = 6641^2 + 2651^2 .

It is a super-2 number, since 2×51130682² = 5228693283570248, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12782669 + ... + 12782672.

Almost surely, 2^51130682 is an apocalyptic number.

51130682 is a deficient number, since it is larger than the sum of its proper divisors (25565344).

51130682 is a wasteful number, since it uses less digits than its factorization.

51130682 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25565343.

The product of its (nonzero) digits is 1440, while the sum is 26.

The square root of 51130682 is about 7150.5721449406. The cubic root of 51130682 is about 371.1594551451.

Adding to 51130682 its reverse (28603115), we get a palindrome (79733797).

The spelling of 51130682 in words is "fifty-one million, one hundred thirty thousand, six hundred eighty-two".