51684101 has 8 divisors (see below), whose sum is σ = 59171904. Its totient is φ = 44222400.

The previous prime is 51684043. The next prime is 51684107. The reversal of 51684101 is 10148615.

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-51684101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51684107) 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, 2075 + ... + 10376.

It is an arithmetic number, because the mean of its divisors is an integer number (7396488).

Almost surely, 2^51684101 is an apocalyptic number.

51684101 is the 4151-st octagonal number.

It is an amenable number.

51684101 is a deficient number, since it is larger than the sum of its proper divisors (7487803).

51684101 is a wasteful number, since it uses less digits than its factorization.

51684101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13051.

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 51684101 is about 7189.1655287662. The cubic root of 51684101 is about 372.4937488253.

The spelling of 51684101 in words is "fifty-one million, six hundred eighty-four thousand, one hundred one".