51027687 has 12 divisors (see below), whose sum is σ = 73801624. Its totient is φ = 33974640.

The previous prime is 51027679. The next prime is 51027703. The reversal of 51027687 is 78672015.

It is not a de Polignac number, because 51027687 - 2³ = 51027679 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51027637) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4737 + ... + 11157.

Almost surely, 2^51027687 is an apocalyptic number.

51027687 is a deficient number, since it is larger than the sum of its proper divisors (22773937).

51027687 is a wasteful number, since it uses less digits than its factorization.

51027687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7310 (or 7307 counting only the distinct ones).

The product of its (nonzero) digits is 23520, while the sum is 36.

The square root of 51027687 is about 7143.3666432572. The cubic root of 51027687 is about 370.9100728223.

The spelling of 51027687 in words is "fifty-one million, twenty-seven thousand, six hundred eighty-seven".