49581515559 has 16 divisors (see below), whose sum is σ = 67073676800. Its totient is φ = 32573451456.

The previous prime is 49581515549. The next prime is 49581515573. The reversal of 49581515559 is 95551518594.

It is not a de Polignac number, because 49581515559 - 2⁵ = 49581515527 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 49581515499 and 49581515508.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (49581515509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76054 + ... + 323955.

It is an arithmetic number, because the mean of its divisors is an integer number (4192104800).

Almost surely, 2^49581515559 is an apocalyptic number.

49581515559 is a deficient number, since it is larger than the sum of its proper divisors (17492161241).

49581515559 is a wasteful number, since it uses less digits than its factorization.

49581515559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400614.

The product of its digits is 8100000, while the sum is 57.

The spelling of 49581515559 in words is "forty-nine billion, five hundred eighty-one million, five hundred fifteen thousand, five hundred fifty-nine".