51340330 has 16 divisors (see below), whose sum is σ = 92500704. Its totient is φ = 20516560.

The previous prime is 51340327. The next prime is 51340379. The reversal of 51340330 is 3304315.

It is a junction number, because it is equal to n+sod(n) for n = 51340298 and 51340307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13545 + ... + 16915.

It is an arithmetic number, because the mean of its divisors is an integer number (5781294).

Almost surely, 2^51340330 is an apocalyptic number.

51340330 is a deficient number, since it is larger than the sum of its proper divisors (41160374).

51340330 is a wasteful number, since it uses less digits than its factorization.

51340330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4901.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 51340330 is about 7165.2166750211. The cubic root of 51340330 is about 371.6660441806. Note that the first 3 decimals are identical.

Adding to 51340330 its reverse (3304315), we get a palindrome (54644645).

The spelling of 51340330 in words is "fifty-one million, three hundred forty thousand, three hundred thirty".