50551485729 has 16 divisors (see below), whose sum is σ = 68418766848. Its totient is φ = 33192756432.

The previous prime is 50551485683. The next prime is 50551485731. The reversal of 50551485729 is 92758415505.

It is not a de Polignac number, because 50551485729 - 2¹¹ = 50551483681 is a prime.

It is a super-2 number, since 2×50551485729² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (50551485529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1577464 + ... + 1609190.

It is an arithmetic number, because the mean of its divisors is an integer number (4276172928).

Almost surely, 2^50551485729 is an apocalyptic number.

It is an amenable number.

50551485729 is a deficient number, since it is larger than the sum of its proper divisors (17867281119).

50551485729 is a wasteful number, since it uses less digits than its factorization.

50551485729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39724.

The product of its (nonzero) digits is 2520000, while the sum is 51.

The spelling of 50551485729 in words is "fifty billion, five hundred fifty-one million, four hundred eighty-five thousand, seven hundred twenty-nine".