51383658 has 16 divisors (see below), whose sum is σ = 102846240. Its totient is φ = 17114736.

The previous prime is 51383617. The next prime is 51383669. The reversal of 51383658 is 85638315.

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, 8341 + ... + 13127.

It is an arithmetic number, because the mean of its divisors is an integer number (6427890).

Almost surely, 2^51383658 is an apocalyptic number.

51383658 is an abundant number, since it is smaller than the sum of its proper divisors (51462582).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51383658 is a wasteful number, since it uses less digits than its factorization.

51383658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581.

The product of its digits is 86400, while the sum is 39.

The square root of 51383658 is about 7168.2395328281. The cubic root of 51383658 is about 371.7705690143.

The spelling of 51383658 in words is "fifty-one million, three hundred eighty-three thousand, six hundred fifty-eight".