505300030550 has 48 divisors (see below), whose sum is σ = 1130656323840. Its totient is φ = 164127526560.

The previous prime is 505300030463. The next prime is 505300030559. The reversal of 505300030550 is 55030003505.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505300030559) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37985834 + ... + 37999133.

It is an arithmetic number, because the mean of its divisors is an integer number (23555340080).

Almost surely, 2^505300030550 is an apocalyptic number.

505300030550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505300030550 is an abundant number, since it is smaller than the sum of its proper divisors (625356293290).

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

505300030550 is a wasteful number, since it uses less digits than its factorization.

505300030550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75985005 (or 75985000 counting only the distinct ones).

The product of its (nonzero) digits is 5625, while the sum is 26.

The spelling of 505300030550 in words is "five hundred five billion, three hundred million, thirty thousand, five hundred fifty".