51200236515 has 16 divisors (see below), whose sum is σ = 81923390208. Its totient is φ = 27305788896.

The previous prime is 51200236501. The next prime is 51200236531. The reversal of 51200236515 is 51563200215.

It is a happy number.

It is not a de Polignac number, because 51200236515 - 2¹¹ = 51200234467 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 555132 + ... + 640758.

It is an arithmetic number, because the mean of its divisors is an integer number (5120211888).

Almost surely, 2^51200236515 is an apocalyptic number.

51200236515 is a deficient number, since it is larger than the sum of its proper divisors (30723153693).

51200236515 is a wasteful number, since it uses less digits than its factorization.

51200236515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125498.

The product of its (nonzero) digits is 9000, while the sum is 30.

The spelling of 51200236515 in words is "fifty-one billion, two hundred million, two hundred thirty-six thousand, five hundred fifteen".