51678082 has 4 divisors (see below), whose sum is σ = 77517126. Its totient is φ = 25839040.

The previous prime is 51678049. The next prime is 51678083. The reversal of 51678082 is 28087615.

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., 51279921 + 398161 = 7161^2 + 631^2 .

It is not an unprimeable number, because it can be changed into a prime (51678083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12919519 + ... + 12919522.

Almost surely, 2^51678082 is an apocalyptic number.

51678082 is a deficient number, since it is larger than the sum of its proper divisors (25839044).

51678082 is a wasteful number, since it uses less digits than its factorization.

51678082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25839043.

The product of its (nonzero) digits is 26880, while the sum is 37.

The square root of 51678082 is about 7188.7469005384. The cubic root of 51678082 is about 372.4792883699.

The spelling of 51678082 in words is "fifty-one million, six hundred seventy-eight thousand, eighty-two".