51353918 has 48 divisors (see below), whose sum is σ = 99522432. Its totient is φ = 19306800.

The previous prime is 51353881. The next prime is 51353921. The reversal of 51353918 is 81935315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147821 + ... + 148167.

It is an arithmetic number, because the mean of its divisors is an integer number (2073384).

Almost surely, 2^51353918 is an apocalyptic number.

51353918 is a deficient number, since it is larger than the sum of its proper divisors (48168514).

51353918 is a wasteful number, since it uses less digits than its factorization.

51353918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429 (or 398 counting only the distinct ones).

The product of its digits is 16200, while the sum is 35.

The square root of 51353918 is about 7166.1648041334. The cubic root of 51353918 is about 371.6988303141.

The spelling of 51353918 in words is "fifty-one million, three hundred fifty-three thousand, nine hundred eighteen".