51075055 has 8 divisors (see below), whose sum is σ = 64895472. Its totient is φ = 38456448.

The previous prime is 51075049. The next prime is 51075067. The reversal of 51075055 is 55057015.

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

It is not a de Polignac number, because 51075055 - 2²⁵ = 17520623 is a prime.

It is a super-2 number, since 2×51075055² = 5217322486506050, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 300357 + ... + 300526.

It is an arithmetic number, because the mean of its divisors is an integer number (8111934).

Almost surely, 2^51075055 is an apocalyptic number.

51075055 is a deficient number, since it is larger than the sum of its proper divisors (13820417).

51075055 is a wasteful number, since it uses less digits than its factorization.

51075055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 600905.

The product of its (nonzero) digits is 4375, while the sum is 28.

The square root of 51075055 is about 7146.6813976838. The cubic root of 51075055 is about 371.0248068407.

The spelling of 51075055 in words is "fifty-one million, seventy-five thousand, fifty-five".