51359668 has 12 divisors (see below), whose sum is σ = 90028960. Its totient is φ = 25637112.

The previous prime is 51359639. The next prime is 51359683. The reversal of 51359668 is 86695315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7896 + ... + 12847.

Almost surely, 2^51359668 is an apocalyptic number.

It is an amenable number.

51359668 is a deficient number, since it is larger than the sum of its proper divisors (38669292).

51359668 is a wasteful number, since it uses less digits than its factorization.

51359668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21366 (or 21364 counting only the distinct ones).

The product of its digits is 194400, while the sum is 43.

The square root of 51359668 is about 7166.5659837889. The cubic root of 51359668 is about 371.7127025988.

The spelling of 51359668 in words is "fifty-one million, three hundred fifty-nine thousand, six hundred sixty-eight".