51359285 has 4 divisors (see below), whose sum is σ = 61631148. Its totient is φ = 41087424.

The previous prime is 51359267. The next prime is 51359309. The reversal of 51359285 is 58295315.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 40056241 + 11303044 = 6329^2 + 3362^2 .

It is a cyclic number.

It is not a de Polignac number, because 51359285 - 2²⁰ = 50310709 is a prime.

It is a super-2 number, since 2×51359285² = 5275552311422450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5135924 + ... + 5135933.

It is an arithmetic number, because the mean of its divisors is an integer number (15407787).

Almost surely, 2^51359285 is an apocalyptic number.

It is an amenable number.

51359285 is a deficient number, since it is larger than the sum of its proper divisors (10271863).

51359285 is a wasteful number, since it uses less digits than its factorization.

51359285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10271862.

The product of its digits is 54000, while the sum is 38.

The square root of 51359285 is about 7166.5392624334. The cubic root of 51359285 is about 371.7117786162.

The spelling of 51359285 in words is "fifty-one million, three hundred fifty-nine thousand, two hundred eighty-five".