51730269 has 8 divisors (see below), whose sum is σ = 73031040. Its totient is φ = 32458176.

The previous prime is 51730253. The next prime is 51730277. The reversal of 51730269 is 96203715.

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

It is not a de Polignac number, because 51730269 - 2⁴ = 51730253 is a prime.

It is a super-2 number, since 2×51730269² = 5352041461624722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51730219) 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, 507109 + ... + 507210.

It is an arithmetic number, because the mean of its divisors is an integer number (9128880).

Almost surely, 2^51730269 is an apocalyptic number.

It is an amenable number.

51730269 is a deficient number, since it is larger than the sum of its proper divisors (21300771).

51730269 is a wasteful number, since it uses less digits than its factorization.

51730269 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1014339.

The product of its (nonzero) digits is 11340, while the sum is 33.

The square root of 51730269 is about 7192.3757549227. The cubic root of 51730269 is about 372.6046286573.

The spelling of 51730269 in words is "fifty-one million, seven hundred thirty thousand, two hundred sixty-nine".