51431014 has 4 divisors (see below), whose sum is σ = 77146524. Its totient is φ = 25715506.

The previous prime is 51431011. The next prime is 51431021. The reversal of 51431014 is 41013415.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 41013415 = 5 ⋅8202683.

It is a junction number, because it is equal to n+sod(n) for n = 51430982 and 51431000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51431011) 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, 12857752 + ... + 12857755.

It is an arithmetic number, because the mean of its divisors is an integer number (19286631).

Almost surely, 2^51431014 is an apocalyptic number.

51431014 is a deficient number, since it is larger than the sum of its proper divisors (25715510).

51431014 is a wasteful number, since it uses less digits than its factorization.

51431014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25715509.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 51431014 is about 7171.5419541407. The cubic root of 51431014 is about 371.8847438447.

Adding to 51431014 its reverse (41013415), we get a palindrome (92444429).

The spelling of 51431014 in words is "fifty-one million, four hundred thirty-one thousand, fourteen".