51043516 has 6 divisors (see below), whose sum is σ = 89326160. Its totient is φ = 25521756.

The previous prime is 51043513. The next prime is 51043561. The reversal of 51043516 is 61534015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51043511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6380436 + ... + 6380443.

Almost surely, 2^51043516 is an apocalyptic number.

It is an amenable number.

51043516 is a deficient number, since it is larger than the sum of its proper divisors (38282644).

51043516 is a wasteful number, since it uses less digits than its factorization.

51043516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12760883 (or 12760881 counting only the distinct ones).

The product of its (nonzero) digits is 1800, while the sum is 25.

The square root of 51043516 is about 7144.4745083176. The cubic root of 51043516 is about 370.9484214713.

The spelling of 51043516 in words is "fifty-one million, forty-three thousand, five hundred sixteen".