51268988 has 12 divisors (see below), whose sum is σ = 89787432. Its totient is φ = 25615440.

The previous prime is 51268961. The next prime is 51268999. The reversal of 51268988 is 88986215.

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, 2531 + ... + 10437.

It is an arithmetic number, because the mean of its divisors is an integer number (7482286).

Almost surely, 2^51268988 is an apocalyptic number.

It is an amenable number.

51268988 is a deficient number, since it is larger than the sum of its proper divisors (38518444).

51268988 is a wasteful number, since it uses less digits than its factorization.

51268988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9532 (or 9530 counting only the distinct ones).

The product of its digits is 276480, while the sum is 47.

The square root of 51268988 is about 7160.2365882700. The cubic root of 51268988 is about 371.4938099270.

The spelling of 51268988 in words is "fifty-one million, two hundred sixty-eight thousand, nine hundred eighty-eight".