42051243550 has 12 divisors (see below), whose sum is σ = 78215313096. Its totient is φ = 16820497400.

The previous prime is 42051243547. The next prime is 42051243557. The reversal of 42051243550 is 5534215024.

42051243550 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42051243557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 420512386 + ... + 420512485.

It is an arithmetic number, because the mean of its divisors is an integer number (6517942758).

Almost surely, 2^42051243550 is an apocalyptic number.

42051243550 is a deficient number, since it is larger than the sum of its proper divisors (36164069546).

42051243550 is a wasteful number, since it uses less digits than its factorization.

42051243550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 841024883 (or 841024878 counting only the distinct ones).

The product of its (nonzero) digits is 24000, while the sum is 31.

Adding to 42051243550 its reverse (5534215024), we get a palindrome (47585458574).

The spelling of 42051243550 in words is "forty-two billion, fifty-one million, two hundred forty-three thousand, five hundred fifty".