51285177 has 16 divisors (see below), whose sum is σ = 76140160. Its totient is φ = 34117200.

The previous prime is 51285173. The next prime is 51285203. The reversal of 51285177 is 77158215.

51285177 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51285177 - 2² = 51285173 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51285173) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12852 + ... + 16362.

It is an arithmetic number, because the mean of its divisors is an integer number (4758760).

Almost surely, 2^51285177 is an apocalyptic number.

It is an amenable number.

51285177 is a deficient number, since it is larger than the sum of its proper divisors (24854983).

51285177 is a wasteful number, since it uses less digits than its factorization.

51285177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4061 (or 4055 counting only the distinct ones).

The product of its digits is 19600, while the sum is 36.

The square root of 51285177 is about 7161.3669784476. The cubic root of 51285177 is about 371.5329075090.

The spelling of 51285177 in words is "fifty-one million, two hundred eighty-five thousand, one hundred seventy-seven".