51106785 has 8 divisors (see below), whose sum is σ = 81770880. Its totient is φ = 27256944.

The previous prime is 51106771. The next prime is 51106793. The reversal of 51106785 is 58760115.

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

It is not a de Polignac number, because 51106785 - 2⁵ = 51106753 is a prime.

It is a super-2 number, since 2×51106785² = 5223806946072450, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

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, 1703545 + ... + 1703574.

It is an arithmetic number, because the mean of its divisors is an integer number (10221360).

Almost surely, 2^51106785 is an apocalyptic number.

It is an amenable number.

51106785 is a deficient number, since it is larger than the sum of its proper divisors (30664095).

51106785 is a wasteful number, since it uses less digits than its factorization.

51106785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3407127.

The product of its (nonzero) digits is 8400, while the sum is 33.

The square root of 51106785 is about 7148.9009644840. The cubic root of 51106785 is about 371.1016230743.

The spelling of 51106785 in words is "fifty-one million, one hundred six thousand, seven hundred eighty-five".