42031250542 has 4 divisors (see below), whose sum is σ = 63046875816. Its totient is φ = 21015625270.

The previous prime is 42031250533. The next prime is 42031250567. The reversal of 42031250542 is 24505213024.

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

It is a self number, because there is not a number n which added to its sum of digits gives 42031250542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10507812634 + ... + 10507812637.

It is an arithmetic number, because the mean of its divisors is an integer number (15761718954).

Almost surely, 2^42031250542 is an apocalyptic number.

42031250542 is a deficient number, since it is larger than the sum of its proper divisors (21015625274).

42031250542 is a wasteful number, since it uses less digits than its factorization.

42031250542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21015625273.

The product of its (nonzero) digits is 9600, while the sum is 28.

Adding to 42031250542 its reverse (24505213024), we get a palindrome (66536463566).

The spelling of 42031250542 in words is "forty-two billion, thirty-one million, two hundred fifty thousand, five hundred forty-two".