51071516 has 12 divisors (see below), whose sum is σ = 91277088. Its totient is φ = 24992352.

The previous prime is 51071483. The next prime is 51071611. The reversal of 51071516 is 61517015.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 135641 + ... + 136016.

It is an arithmetic number, because the mean of its divisors is an integer number (7606424).

Almost surely, 2^51071516 is an apocalyptic number.

It is an amenable number.

51071516 is a deficient number, since it is larger than the sum of its proper divisors (40205572).

51071516 is a wasteful number, since it uses less digits than its factorization.

51071516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271708 (or 271706 counting only the distinct ones).

The product of its (nonzero) digits is 1050, while the sum is 26.

The square root of 51071516 is about 7146.4337959573. The cubic root of 51071516 is about 371.0162371836.

The spelling of 51071516 in words is "fifty-one million, seventy-one thousand, five hundred sixteen".