51606255 has 16 divisors (see below), whose sum is σ = 83702880. Its totient is φ = 27145728.

The previous prime is 51606251. The next prime is 51606263. The reversal of 51606255 is 55260615.

It is not a de Polignac number, because 51606255 - 2² = 51606251 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51606251) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22470 + ... + 24659.

It is an arithmetic number, because the mean of its divisors is an integer number (5231430).

Almost surely, 2^51606255 is an apocalyptic number.

51606255 is a deficient number, since it is larger than the sum of its proper divisors (32096625).

51606255 is a wasteful number, since it uses less digits than its factorization.

51606255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47210.

The product of its (nonzero) digits is 9000, while the sum is 30.

The square root of 51606255 is about 7183.7493692361. The cubic root of 51606255 is about 372.3066395829.

The spelling of 51606255 in words is "fifty-one million, six hundred six thousand, two hundred fifty-five".