51030344 has 16 divisors (see below), whose sum is σ = 97718400. Its totient is φ = 24972112.

The previous prime is 51030341. The next prime is 51030359. The reversal of 51030344 is 44303015.

It is not an unprimeable number, because it can be changed into a prime (51030341) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67484 + ... + 68235.

It is an arithmetic number, because the mean of its divisors is an integer number (6107400).

Almost surely, 2^51030344 is an apocalyptic number.

It is an amenable number.

51030344 is a deficient number, since it is larger than the sum of its proper divisors (46688056).

51030344 is a wasteful number, since it uses less digits than its factorization.

51030344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135772 (or 135768 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 20.

The square root of 51030344 is about 7143.5526175706. The cubic root of 51030344 is about 370.9165104448.

Adding to 51030344 its reverse (44303015), we get a palindrome (95333359).

The spelling of 51030344 in words is "fifty-one million, thirty thousand, three hundred forty-four".