51359375 has 28 divisors (see below), whose sum is σ = 67967880. Its totient is φ = 38700000.

The previous prime is 51359359. The next prime is 51359381. The reversal of 51359375 is 57395315.

It is not a de Polignac number, because 51359375 - 2⁴ = 51359359 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 27 ways as a sum of consecutive naturals, for example, 296789 + ... + 296961.

Almost surely, 2^51359375 is an apocalyptic number.

51359375 is a deficient number, since it is larger than the sum of its proper divisors (16608505).

51359375 is an frugal number, since it uses more digits than its factorization.

51359375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222 (or 197 counting only the distinct ones).

The product of its digits is 70875, while the sum is 38.

The square root of 51359375 is about 7166.5455416121. The cubic root of 51359375 is about 371.7119957405.

The spelling of 51359375 in words is "fifty-one million, three hundred fifty-nine thousand, three hundred seventy-five".