42005050529 has 4 divisors (see below), whose sum is σ = 45236208276. Its totient is φ = 38773892784.

The previous prime is 42005050517. The next prime is 42005050547. The reversal of 42005050529 is 92505050024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4192303504 + 37812747025 = 64748^2 + 194455^2 .

It is a cyclic number.

It is not a de Polignac number, because 42005050529 - 2³² = 37710083233 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42005050495 and 42005050504.

It is not an unprimeable number, because it can be changed into a prime (42005020529) 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 3 ways as a sum of consecutive naturals, for example, 1615578854 + ... + 1615578879.

It is an arithmetic number, because the mean of its divisors is an integer number (11309052069).

Almost surely, 2^42005050529 is an apocalyptic number.

It is an amenable number.

42005050529 is a deficient number, since it is larger than the sum of its proper divisors (3231157747).

42005050529 is a wasteful number, since it uses less digits than its factorization.

42005050529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3231157746.

The product of its (nonzero) digits is 18000, while the sum is 32.

The spelling of 42005050529 in words is "forty-two billion, five million, fifty thousand, five hundred twenty-nine".