51200613 has 16 divisors (see below), whose sum is σ = 77140800. Its totient is φ = 33554160.

The previous prime is 51200603. The next prime is 51200621. The reversal of 51200613 is 31600215.

51200613 is a `hidden beast` number, since 51 + 2 + 0 + 0 + 613 = 666.

It is not a de Polignac number, because 51200613 - 2⁵ = 51200581 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51200603) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 14478 + ... + 17663.

It is an arithmetic number, because the mean of its divisors is an integer number (4821300).

Almost surely, 2^51200613 is an apocalyptic number.

It is an amenable number.

51200613 is a deficient number, since it is larger than the sum of its proper divisors (25940187).

51200613 is a wasteful number, since it uses less digits than its factorization.

51200613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32209 (or 32203 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 51200613 is about 7155.4603625483. The cubic root of 51200613 is about 371.3285886070.

Adding to 51200613 its reverse (31600215), we get a palindrome (82800828).

The spelling of 51200613 in words is "fifty-one million, two hundred thousand, six hundred thirteen".