51167669 has 8 divisors (see below), whose sum is σ = 58520640. Its totient is φ = 43825536.

The previous prime is 51167659. The next prime is 51167681. The reversal of 51167669 is 96676115.

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

It is a cyclic number.

It is not a de Polignac number, because 51167669 - 2¹² = 51163573 is a prime.

It is a super-2 number, since 2×51167669² = 5236260701787122, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51167659) 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, 16742 + ... + 19560.

It is an arithmetic number, because the mean of its divisors is an integer number (7315080).

Almost surely, 2^51167669 is an apocalyptic number.

It is an amenable number.

51167669 is a deficient number, since it is larger than the sum of its proper divisors (7352971).

51167669 is a wasteful number, since it uses less digits than its factorization.

51167669 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5419.

The product of its digits is 68040, while the sum is 41.

The square root of 51167669 is about 7153.1579739301. The cubic root of 51167669 is about 371.2489302270.

The spelling of 51167669 in words is "fifty-one million, one hundred sixty-seven thousand, six hundred sixty-nine".