51045255 has 32 divisors (see below), whose sum is σ = 91653120. Its totient is φ = 26952480.

The previous prime is 51045209. The next prime is 51045301. The reversal of 51045255 is 55254015.

51045255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (51045209) and next prime (51045301).

It is not a de Polignac number, because 51045255 - 2⁹ = 51044743 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 12070 + ... + 15740.

It is an arithmetic number, because the mean of its divisors is an integer number (2864160).

Almost surely, 2^51045255 is an apocalyptic number.

51045255 is a deficient number, since it is larger than the sum of its proper divisors (40607865).

51045255 is a wasteful number, since it uses less digits than its factorization.

51045255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3788 (or 3782 counting only the distinct ones).

The product of its (nonzero) digits is 5000, while the sum is 27.

The square root of 51045255 is about 7144.5962097238. The cubic root of 51045255 is about 370.9526340336.

The spelling of 51045255 in words is "fifty-one million, forty-five thousand, two hundred fifty-five".