51204255 has 32 divisors (see below), whose sum is σ = 87562944. Its totient is φ = 25460736.

The previous prime is 51204247. The next prime is 51204269. The reversal of 51204255 is 55240215.

It is a happy number.

51204255 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 51204255 - 2³ = 51204247 is a prime.

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, 27927 + ... + 29703.

It is an arithmetic number, because the mean of its divisors is an integer number (2736342).

Almost surely, 2^51204255 is an apocalyptic number.

51204255 is a deficient number, since it is larger than the sum of its proper divisors (36358689).

51204255 is a wasteful number, since it uses less digits than its factorization.

51204255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1915.

The product of its (nonzero) digits is 2000, while the sum is 24.

The square root of 51204255 is about 7155.7148489861. The cubic root of 51204255 is about 371.3373928418.

The spelling of 51204255 in words is "fifty-one million, two hundred four thousand, two hundred fifty-five".