51289288 has 32 divisors (see below), whose sum is σ = 98386560. Its totient is φ = 25058880.

The previous prime is 51289243. The next prime is 51289297. The reversal of 51289288 is 88298215.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110545 + ... + 111007.

It is an arithmetic number, because the mean of its divisors is an integer number (3074580).

Almost surely, 2^51289288 is an apocalyptic number.

It is an amenable number.

51289288 is a deficient number, since it is larger than the sum of its proper divisors (47097272).

51289288 is a wasteful number, since it uses less digits than its factorization.

51289288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 757 (or 753 counting only the distinct ones).

The product of its digits is 92160, while the sum is 43.

The square root of 51289288 is about 7161.6539989028. The cubic root of 51289288 is about 371.5428345552.

The spelling of 51289288 in words is "fifty-one million, two hundred eighty-nine thousand, two hundred eighty-eight".