51085546 has 16 divisors (see below), whose sum is σ = 78300288. Its totient is φ = 24991200.

The previous prime is 51085543. The next prime is 51085571. The reversal of 51085546 is 64558015.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (51085543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17791 + ... + 20461.

It is an arithmetic number, because the mean of its divisors is an integer number (4893768).

Almost surely, 2^51085546 is an apocalyptic number.

51085546 is a deficient number, since it is larger than the sum of its proper divisors (27214742).

51085546 is a wasteful number, since it uses less digits than its factorization.

51085546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2877.

The product of its (nonzero) digits is 24000, while the sum is 34.

The square root of 51085546 is about 7147.4153370292. The cubic root of 51085546 is about 371.0502083782.

The spelling of 51085546 in words is "fifty-one million, eighty-five thousand, five hundred forty-six".