51335530 has 32 divisors (see below), whose sum is σ = 97724160. Its totient is φ = 19362240.

The previous prime is 51335521. The next prime is 51335533. The reversal of 51335530 is 3553315.

It is a happy number.

51335530 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 51335495 and 51335504.

It is not an unprimeable number, because it can be changed into a prime (51335533) 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 in 15 ways as a sum of consecutive naturals, for example, 50992 + ... + 51988.

It is an arithmetic number, because the mean of its divisors is an integer number (3053880).

Almost surely, 2^51335530 is an apocalyptic number.

51335530 is a deficient number, since it is larger than the sum of its proper divisors (46388630).

51335530 is a wasteful number, since it uses less digits than its factorization.

51335530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1294.

The product of its (nonzero) digits is 3375, while the sum is 25.

The square root of 51335530 is about 7164.8817157019. The cubic root of 51335530 is about 371.6544610022.

Adding to 51335530 its reverse (3553315), we get a palindrome (54888845).

The spelling of 51335530 in words is "fifty-one million, three hundred thirty-five thousand, five hundred thirty".