505550450542 has 4 divisors (see below), whose sum is σ = 758325675816. Its totient is φ = 252775225270.

The previous prime is 505550450479. The next prime is 505550450593. The reversal of 505550450542 is 245054055505.

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 = 505550450495 and 505550450504.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126387612634 + ... + 126387612637.

It is an arithmetic number, because the mean of its divisors is an integer number (189581418954).

Almost surely, 2^505550450542 is an apocalyptic number.

505550450542 is a deficient number, since it is larger than the sum of its proper divisors (252775225274).

505550450542 is a wasteful number, since it uses less digits than its factorization.

505550450542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252775225273.

The product of its (nonzero) digits is 500000, while the sum is 40.

The spelling of 505550450542 in words is "five hundred five billion, five hundred fifty million, four hundred fifty thousand, five hundred forty-two".