51293055 has 16 divisors (see below), whose sum is σ = 89529984. Its totient is φ = 24869280.

The previous prime is 51293051. The next prime is 51293071. The reversal of 51293055 is 55039215.

It is not a de Polignac number, because 51293055 - 2² = 51293051 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51293051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155269 + ... + 155598.

It is an arithmetic number, because the mean of its divisors is an integer number (5595624).

Almost surely, 2^51293055 is an apocalyptic number.

51293055 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

51293055 is a deficient number, since it is larger than the sum of its proper divisors (38236929).

51293055 is a wasteful number, since it uses less digits than its factorization.

51293055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310886.

The product of its (nonzero) digits is 6750, while the sum is 30.

The square root of 51293055 is about 7161.9169919792. The cubic root of 51293055 is about 371.5519304610.

The spelling of 51293055 in words is "fifty-one million, two hundred ninety-three thousand, fifty-five".