505005055050 has 48 divisors (see below), whose sum is σ = 1264812698592. Its totient is φ = 133334664000.

The previous prime is 505005054971. The next prime is 505005055069. The reversal of 505005055050 is 50550500505.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 505005054999 and 505005055017.

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 in 23 ways as a sum of consecutive naturals, for example, 16651684 + ... + 16681983.

It is an arithmetic number, because the mean of its divisors is an integer number (26350264554).

Almost surely, 2^505005055050 is an apocalyptic number.

505005055050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505005055050 is an abundant number, since it is smaller than the sum of its proper divisors (759807643542).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

505005055050 is a wasteful number, since it uses less digits than its factorization.

505005055050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33333783 (or 33333778 counting only the distinct ones).

The product of its (nonzero) digits is 15625, while the sum is 30.

Adding to 505005055050 its reverse (50550500505), we get a palindrome (555555555555).

The spelling of 505005055050 in words is "five hundred five billion, five million, fifty-five thousand, fifty".