51380234 has 8 divisors (see below), whose sum is σ = 77936580. Its totient is φ = 25401376.

The previous prime is 51380233. The next prime is 51380249. The reversal of 51380234 is 43208315.

It can be written as a sum of positive squares in 2 ways, for example, as 39025009 + 12355225 = 6247^2 + 3515^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (51380233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144149 + ... + 144504.

Almost surely, 2^51380234 is an apocalyptic number.

51380234 is a deficient number, since it is larger than the sum of its proper divisors (26556346).

51380234 is a wasteful number, since it uses less digits than its factorization.

51380234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288744.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 51380234 is about 7168.0006975446. Note that the first 3 decimals coincide. The cubic root of 51380234 is about 371.7623110665.

Adding to 51380234 its reverse (43208315), we get a palindrome (94588549).

The spelling of 51380234 in words is "fifty-one million, three hundred eighty thousand, two hundred thirty-four".