505455630 has 32 divisors (see below), whose sum is σ = 1213830144. Its totient is φ = 134706336.

The previous prime is 505455623. The next prime is 505455637. The reversal of 505455630 is 36554505.

It is an interprime number because it is at equal distance from previous prime (505455623) and next prime (505455637).

It is a junction number, because it is equal to n+sod(n) for n = 505455591 and 505455600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505455637) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57807 + ... + 65973.

It is an arithmetic number, because the mean of its divisors is an integer number (37932192).

Almost surely, 2^505455630 is an apocalyptic number.

505455630 is an abundant number, since it is smaller than the sum of its proper divisors (708374514).

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

505455630 is a wasteful number, since it uses less digits than its factorization.

505455630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10240.

The product of its (nonzero) digits is 45000, while the sum is 33.

The square root of 505455630 is about 22482.3404030808. The cubic root of 505455630 is about 796.5768473829.

The spelling of 505455630 in words is "five hundred five million, four hundred fifty-five thousand, six hundred thirty".