51081762 has 16 divisors (see below), whose sum is σ = 104337792. Its totient is φ = 16664880.

The previous prime is 51081743. The next prime is 51081773. The reversal of 51081762 is 26718015.

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 in 7 ways as a sum of consecutive naturals, for example, 90289 + ... + 90852.

It is an arithmetic number, because the mean of its divisors is an integer number (6521112).

Almost surely, 2^51081762 is an apocalyptic number.

51081762 is an abundant number, since it is smaller than the sum of its proper divisors (53256030).

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

51081762 is a wasteful number, since it uses less digits than its factorization.

51081762 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181193.

The product of its (nonzero) digits is 3360, while the sum is 30.

The square root of 51081762 is about 7147.1506210517. The cubic root of 51081762 is about 371.0410466957.

Adding to 51081762 its reverse (26718015), we get a palindrome (77799777).

The spelling of 51081762 in words is "fifty-one million, eighty-one thousand, seven hundred sixty-two".