51425255 has 24 divisors (see below), whose sum is σ = 76014288. Its totient is φ = 33186048.

The previous prime is 51425243. The next prime is 51425273. The reversal of 51425255 is 55252415.

51425255 = 316² + 317² + ... + 570².

It is not a de Polignac number, because 51425255 - 2⁴ = 51425239 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2009 + ... + 10338.

It is an arithmetic number, because the mean of its divisors is an integer number (3167262).

Almost surely, 2^51425255 is an apocalyptic number.

51425255 is a deficient number, since it is larger than the sum of its proper divisors (24589033).

51425255 is a wasteful number, since it uses less digits than its factorization.

51425255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12383 (or 12376 counting only the distinct ones).

The product of its digits is 10000, while the sum is 29.

The square root of 51425255 is about 7171.1404253438. The cubic root of 51425255 is about 371.8708626991.

The spelling of 51425255 in words is "fifty-one million, four hundred twenty-five thousand, two hundred fifty-five".