51004513 has 8 divisors (see below), whose sum is σ = 58443840. Its totient is φ = 43603440.

The previous prime is 51004511. The next prime is 51004519. The reversal of 51004513 is 31540015.

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

It is a cyclic number.

It is not a de Polignac number, because 51004513 - 2¹ = 51004511 is a prime.

It is not an unprimeable number, because it can be changed into a prime (51004511) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6643 + ... + 12088.

It is an arithmetic number, because the mean of its divisors is an integer number (7305480).

Almost surely, 2^51004513 is an apocalyptic number.

It is an amenable number.

51004513 is a deficient number, since it is larger than the sum of its proper divisors (7439327).

51004513 is a wasteful number, since it uses less digits than its factorization.

51004513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19127.

The product of its (nonzero) digits is 300, while the sum is 19.

The square root of 51004513 is about 7141.7443947540. The cubic root of 51004513 is about 370.8539152599.

Adding to 51004513 its reverse (31540015), we get a palindrome (82544528).

The spelling of 51004513 in words is "fifty-one million, four thousand, five hundred thirteen".