51676319 has 4 divisors (see below), whose sum is σ = 51755160. Its totient is φ = 51597480.

The previous prime is 51676301. The next prime is 51676343. The reversal of 51676319 is 91367615.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-51676319 is a prime.

It is a super-2 number, since 2×51676319² = 5340883890779522, which contains 22 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 (51676019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38429 + ... + 39750.

It is an arithmetic number, because the mean of its divisors is an integer number (12938790).

Almost surely, 2^51676319 is an apocalyptic number.

51676319 is a deficient number, since it is larger than the sum of its proper divisors (78841).

51676319 is an equidigital number, since it uses as much as digits as its factorization.

51676319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78840.

The product of its digits is 34020, while the sum is 38.

The square root of 51676319 is about 7188.6242772870. The cubic root of 51676319 is about 372.4750526061.

The spelling of 51676319 in words is "fifty-one million, six hundred seventy-six thousand, three hundred nineteen".