42455056550 has 12 divisors (see below), whose sum is σ = 78966405276. Its totient is φ = 16982022600.

The previous prime is 42455056547. The next prime is 42455056583. The reversal of 42455056550 is 5565055424.

It is a junction number, because it is equal to n+sod(n) for n = 42455056498 and 42455056507.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 424550516 + ... + 424550615.

It is an arithmetic number, because the mean of its divisors is an integer number (6580533773).

Almost surely, 2^42455056550 is an apocalyptic number.

42455056550 is a deficient number, since it is larger than the sum of its proper divisors (36511348726).

42455056550 is a wasteful number, since it uses less digits than its factorization.

42455056550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 849101143 (or 849101138 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 42455056550 in words is "forty-two billion, four hundred fifty-five million, fifty-six thousand, five hundred fifty".