51269933 has 8 divisors (see below), whose sum is σ = 60233376. Its totient is φ = 43023600.

The previous prime is 51269927. The next prime is 51269947. The reversal of 51269933 is 33996215.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51269933 is a prime.

It is a super-4 number, since 4×51269933⁴ (a number of 32 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51269233) 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, 179123 + ... + 179408.

It is an arithmetic number, because the mean of its divisors is an integer number (7529172).

Almost surely, 2^51269933 is an apocalyptic number.

It is an amenable number.

51269933 is a deficient number, since it is larger than the sum of its proper divisors (8963443).

51269933 is a wasteful number, since it uses less digits than its factorization.

51269933 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358555.

The product of its digits is 43740, while the sum is 38.

The square root of 51269933 is about 7160.3025774055. The cubic root of 51269933 is about 371.4960923951.

The spelling of 51269933 in words is "fifty-one million, two hundred sixty-nine thousand, nine hundred thirty-three".