51312982 has 16 divisors (see below), whose sum is σ = 88058880. Its totient is φ = 21967848.

The previous prime is 51312979. The next prime is 51312983. The reversal of 51312982 is 28921315.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51312983) 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, 20769 + ... + 23107.

It is an arithmetic number, because the mean of its divisors is an integer number (5503680).

Almost surely, 2^51312982 is an apocalyptic number.

51312982 is a deficient number, since it is larger than the sum of its proper divisors (36745898).

51312982 is a wasteful number, since it uses less digits than its factorization.

51312982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3915.

The product of its digits is 4320, while the sum is 31.

The square root of 51312982 is about 7163.3080347002. The cubic root of 51312982 is about 371.6000393570.

The spelling of 51312982 in words is "fifty-one million, three hundred twelve thousand, nine hundred eighty-two".