49959588513521 has 16 divisors (see below), whose sum is σ = 52183283819520. Its totient is φ = 47740192497360.

The previous prime is 49959588513503. The next prime is 49959588513617. The reversal of 49959588513521 is 12531588595994.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49959588513521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (49959588515521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 739768526 + ... + 739836056.

It is an arithmetic number, because the mean of its divisors is an integer number (3261455238720).

Almost surely, 2^{49959588513521} is an apocalyptic number.

It is an amenable number.

49959588513521 is a deficient number, since it is larger than the sum of its proper divisors (2223695305999).

49959588513521 is a wasteful number, since it uses less digits than its factorization.

49959588513521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98876.

The product of its digits is 699840000, while the sum is 74.

The spelling of 49959588513521 in words is "forty-nine trillion, nine hundred fifty-nine billion, five hundred eighty-eight million, five hundred thirteen thousand, five hundred twenty-one".