51931034 has 4 divisors (see below), whose sum is σ = 77896554. Its totient is φ = 25965516.

The previous prime is 51931021. The next prime is 51931037. The reversal of 51931034 is 43013915.

51931034 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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., 51165409 + 765625 = 7153^2 + 875^2 .

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 51930994 and 51931012.

It is not an unprimeable number, because it can be changed into a prime (51931037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12982757 + ... + 12982760.

Almost surely, 2^51931034 is an apocalyptic number.

51931034 is a deficient number, since it is larger than the sum of its proper divisors (25965520).

51931034 is a wasteful number, since it uses less digits than its factorization.

51931034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25965519.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 51931034 is about 7206.3190326269. The cubic root of 51931034 is about 373.0860321885.

Adding to 51931034 its reverse (43013915), we get a palindrome (94944949).

The spelling of 51931034 in words is "fifty-one million, nine hundred thirty-one thousand, thirty-four".