51115883 has 8 divisors (see below), whose sum is σ = 62911968. Its totient is φ = 40443264.

The previous prime is 51115879. The next prime is 51115927. The reversal of 51115883 is 38851115.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 51115883 - 2² = 51115879 is a prime.

It is a super-2 number, since 2×51115883² = 5225666989739378, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (51115873) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 280766 + ... + 280947.

It is an arithmetic number, because the mean of its divisors is an integer number (7863996).

Almost surely, 2^51115883 is an apocalyptic number.

51115883 is a deficient number, since it is larger than the sum of its proper divisors (11796085).

51115883 is a wasteful number, since it uses less digits than its factorization.

51115883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561733.

The product of its digits is 4800, while the sum is 32.

The square root of 51115883 is about 7149.5372577531. The cubic root of 51115883 is about 371.1236428658.

Adding to 51115883 its reverse (38851115), we get a palindrome (89966998).

The spelling of 51115883 in words is "fifty-one million, one hundred fifteen thousand, eight hundred eighty-three".