51395255 has 8 divisors (see below), whose sum is σ = 61714224. Its totient is φ = 41089600.

The previous prime is 51395251. The next prime is 51395291. The reversal of 51395255 is 55259315.

51395255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 51395255 - 2² = 51395251 is a prime.

It is a super-3 number, since 3×51395255³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51395251) 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 7 ways as a sum of consecutive naturals, for example, 10100 + ... + 14310.

It is an arithmetic number, because the mean of its divisors is an integer number (7714278).

Almost surely, 2^51395255 is an apocalyptic number.

51395255 is a deficient number, since it is larger than the sum of its proper divisors (10318969).

51395255 is a wasteful number, since it uses less digits than its factorization.

51395255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6657.

The product of its digits is 33750, while the sum is 35.

The square root of 51395255 is about 7169.0484026822. The cubic root of 51395255 is about 371.7985357463.

The spelling of 51395255 in words is "fifty-one million, three hundred ninety-five thousand, two hundred fifty-five".