51085156 has 12 divisors (see below), whose sum is σ = 89666668. Its totient is φ = 25466112.

The previous prime is 51085127. The next prime is 51085157. The reversal of 51085156 is 65158015.

It can be written as a sum of positive squares in 2 ways, for example, as 5062500 + 46022656 = 2250^2 + 6784^2 .

It is not an unprimeable number, because it can be changed into a prime (51085157) 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, 17601 + ... + 20296.

Almost surely, 2^51085156 is an apocalyptic number.

It is an amenable number.

51085156 is a deficient number, since it is larger than the sum of its proper divisors (38581512).

51085156 is a wasteful number, since it uses less digits than its factorization.

51085156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38238 (or 38236 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 31.

The square root of 51085156 is about 7147.3880543874. The cubic root of 51085156 is about 371.0492641453.

The spelling of 51085156 in words is "fifty-one million, eighty-five thousand, one hundred fifty-six".