51323330 has 16 divisors (see below), whose sum is σ = 95568120. Its totient is φ = 19821312.

The previous prime is 51323309. The next prime is 51323347. The reversal of 51323330 is 3332315.

It can be written as a sum of positive squares in 4 ways, for example, as 35058241 + 16265089 = 5921^2 + 4033^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 88199 + ... + 88778.

Almost surely, 2^51323330 is an apocalyptic number.

51323330 is a deficient number, since it is larger than the sum of its proper divisors (44244790).

51323330 is a wasteful number, since it uses less digits than its factorization.

51323330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177013.

The product of its (nonzero) digits is 810, while the sum is 20.

The square root of 51323330 is about 7164.0302902766. The cubic root of 51323330 is about 371.6250171735.

Adding to 51323330 its reverse (3332315), we get a palindrome (54655645).

The spelling of 51323330 in words is "fifty-one million, three hundred twenty-three thousand, three hundred thirty".