51022255 has 8 divisors (see below), whose sum is σ = 62065872. Its totient is φ = 40258368.

The previous prime is 51022247. The next prime is 51022259. The reversal of 51022255 is 55222015.

51022255 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 a cyclic number.

It is not a de Polignac number, because 51022255 - 2³ = 51022247 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 (51022259) 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, 69529 + ... + 70258.

It is an arithmetic number, because the mean of its divisors is an integer number (7758234).

Almost surely, 2^51022255 is an apocalyptic number.

51022255 is a deficient number, since it is larger than the sum of its proper divisors (11043617).

51022255 is a wasteful number, since it uses less digits than its factorization.

51022255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 139865.

The product of its (nonzero) digits is 1000, while the sum is 22.

The square root of 51022255 is about 7142.9864202587. The cubic root of 51022255 is about 370.8969109806.

The spelling of 51022255 in words is "fifty-one million, twenty-two thousand, two hundred fifty-five".