51355285 has 8 divisors (see below), whose sum is σ = 62225280. Its totient is φ = 40684944.

The previous prime is 51355261. The next prime is 51355289. The reversal of 51355285 is 58255315.

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

It is a cyclic number.

It is not a de Polignac number, because 51355285 - 2⁵ = 51355253 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 51355285.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51355289) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49345 + ... + 50374.

It is an arithmetic number, because the mean of its divisors is an integer number (7778160).

Almost surely, 2^51355285 is an apocalyptic number.

It is an amenable number.

51355285 is a deficient number, since it is larger than the sum of its proper divisors (10869995).

51355285 is a wasteful number, since it uses less digits than its factorization.

51355285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99827.

The product of its digits is 30000, while the sum is 34.

The square root of 51355285 is about 7166.2601822708. The cubic root of 51355285 is about 371.7021283928.

The spelling of 51355285 in words is "fifty-one million, three hundred fifty-five thousand, two hundred eighty-five".