50005515542 has 4 divisors (see below), whose sum is σ = 75008273316. Its totient is φ = 25002757770.

The previous prime is 50005515523. The next prime is 50005515551. The reversal of 50005515542 is 24551550005.

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

It is a junction number, because it is equal to n+sod(n) for n = 50005515499 and 50005515508.

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, 12501378884 + ... + 12501378887.

It is an arithmetic number, because the mean of its divisors is an integer number (18752068329).

Almost surely, 2^50005515542 is an apocalyptic number.

50005515542 is a deficient number, since it is larger than the sum of its proper divisors (25002757774).

50005515542 is a wasteful number, since it uses less digits than its factorization.

50005515542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25002757773.

The product of its (nonzero) digits is 25000, while the sum is 32.

The spelling of 50005515542 in words is "fifty billion, five million, five hundred fifteen thousand, five hundred forty-two".