51673168 has 10 divisors (see below), whose sum is σ = 100116794. Its totient is φ = 25836576.

The previous prime is 51673129. The next prime is 51673169. The reversal of 51673168 is 86137615.

It can be written as a sum of positive squares in only one way, i.e., 31674384 + 19998784 = 5628^2 + 4472^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51673169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1614771 + ... + 1614802.

Almost surely, 2^51673168 is an apocalyptic number.

It is an amenable number.

51673168 is a deficient number, since it is larger than the sum of its proper divisors (48443626).

51673168 is a wasteful number, since it uses less digits than its factorization.

51673168 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3229581 (or 3229575 counting only the distinct ones).

The product of its digits is 30240, while the sum is 37.

The square root of 51673168 is about 7188.4051082281. The cubic root of 51673168 is about 372.4674818092.

The spelling of 51673168 in words is "fifty-one million, six hundred seventy-three thousand, one hundred sixty-eight".