51085633 has 4 divisors (see below), whose sum is σ = 51100848. Its totient is φ = 51070420.

The previous prime is 51085627. The next prime is 51085637. The reversal of 51085633 is 33658015.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51085633 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 51085595 and 51085604.

It is not an unprimeable number, because it can be changed into a prime (51085637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103 + ... + 10108.

It is an arithmetic number, because the mean of its divisors is an integer number (12775212).

Almost surely, 2^51085633 is an apocalyptic number.

It is an amenable number.

51085633 is a deficient number, since it is larger than the sum of its proper divisors (15215).

51085633 is a wasteful number, since it uses less digits than its factorization.

51085633 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15214.

The product of its (nonzero) digits is 10800, while the sum is 31.

The square root of 51085633 is about 7147.4214231428. The cubic root of 51085633 is about 371.0504190141.

The spelling of 51085633 in words is "fifty-one million, eighty-five thousand, six hundred thirty-three".