51385746 has 8 divisors (see below), whose sum is σ = 102771504. Its totient is φ = 17128580.

The previous prime is 51385739. The next prime is 51385757. The reversal of 51385746 is 64758315.

It is a sphenic number, since it is the product of 3 distinct primes.

51385746 is an admirable 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, 4282140 + ... + 4282151.

It is an arithmetic number, because the mean of its divisors is an integer number (12846438).

Almost surely, 2^51385746 is an apocalyptic number.

51385746 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51385746 is a wasteful number, since it uses less digits than its factorization.

51385746 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8564296.

The product of its digits is 100800, while the sum is 39.

The square root of 51385746 is about 7168.3851738031. The cubic root of 51385746 is about 371.7756046389.

The spelling of 51385746 in words is "fifty-one million, three hundred eighty-five thousand, seven hundred forty-six".