51617607 has 8 divisors (see below), whose sum is σ = 68866560. Its totient is φ = 34390200.

The previous prime is 51617581. The next prime is 51617611. The reversal of 51617607 is 70671615.

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

It is not a de Polignac number, because 51617607 - 2¹⁰ = 51616583 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51617107) 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, 1444 + ... + 10262.

It is an arithmetic number, because the mean of its divisors is an integer number (8608320).

Almost surely, 2^51617607 is an apocalyptic number.

51617607 is a deficient number, since it is larger than the sum of its proper divisors (17248953).

51617607 is a wasteful number, since it uses less digits than its factorization.

51617607 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10773.

The product of its (nonzero) digits is 8820, while the sum is 33.

The square root of 51617607 is about 7184.5394424417. The cubic root of 51617607 is about 372.3339367591. Note that the first 3 decimals are identical.

The spelling of 51617607 in words is "fifty-one million, six hundred seventeen thousand, six hundred seven".