42251539508 has 12 divisors (see below), whose sum is σ = 73944064740. Its totient is φ = 21124663872.

The previous prime is 42251539483. The next prime is 42251539513. The reversal of 42251539508 is 80593515224.

It can be written as a sum of positive squares in 2 ways, for example, as 13723653904 + 28527885604 = 117148^2 + 168902^2 .

It is a congruent number.

It is an unprimeable number.

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, 187313 + ... + 345816.

It is an arithmetic number, because the mean of its divisors is an integer number (6162005395).

Almost surely, 2^42251539508 is an apocalyptic number.

It is an amenable number.

42251539508 is a deficient number, since it is larger than the sum of its proper divisors (31692525232).

42251539508 is a wasteful number, since it uses less digits than its factorization.

42251539508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 552946 (or 552944 counting only the distinct ones).

The product of its (nonzero) digits is 432000, while the sum is 44.

The spelling of 42251539508 in words is "forty-two billion, two hundred fifty-one million, five hundred thirty-nine thousand, five hundred eight".