51678314 has 4 divisors (see below), whose sum is σ = 77517474. Its totient is φ = 25839156.

The previous prime is 51678313. The next prime is 51678329. The reversal of 51678314 is 41387615.

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

It can be written as a sum of positive squares in only one way, i.e., 50197225 + 1481089 = 7085^2 + 1217^2 .

It is not an unprimeable number, because it can be changed into a prime (51678311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12919577 + ... + 12919580.

Almost surely, 2^51678314 is an apocalyptic number.

51678314 is a deficient number, since it is larger than the sum of its proper divisors (25839160).

51678314 is a wasteful number, since it uses less digits than its factorization.

51678314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25839159.

The product of its digits is 20160, while the sum is 35.

The square root of 51678314 is about 7188.7630368513. The cubic root of 51678314 is about 372.4798457633.

The spelling of 51678314 in words is "fifty-one million, six hundred seventy-eight thousand, three hundred fourteen".