51305135 has 8 divisors (see below), whose sum is σ = 70361376. Its totient is φ = 35180640.

The previous prime is 51305129. The next prime is 51305141. The reversal of 51305135 is 53150315.

It is an interprime number because it is at equal distance from previous prime (51305129) and next prime (51305141).

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

It is not a de Polignac number, because 51305135 - 2²⁰ = 50256559 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 51305135.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732896 + ... + 732965.

It is an arithmetic number, because the mean of its divisors is an integer number (8795172).

Almost surely, 2^51305135 is an apocalyptic number.

51305135 is a deficient number, since it is larger than the sum of its proper divisors (19056241).

51305135 is a wasteful number, since it uses less digits than its factorization.

51305135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1465873.

The product of its (nonzero) digits is 1125, while the sum is 23.

The square root of 51305135 is about 7162.7602919545. The cubic root of 51305135 is about 371.5810961705.

The spelling of 51305135 in words is "fifty-one million, three hundred five thousand, one hundred thirty-five".