505455030 has 48 divisors (see below), whose sum is σ = 1328970240. Its totient is φ = 133271424.

The previous prime is 505455029. The next prime is 505455073. The reversal of 505455030 is 30554505.

It is a junction number, because it is equal to n+sod(n) for n = 505454985 and 505455003.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 23542 + ... + 39561.

It is an arithmetic number, because the mean of its divisors is an integer number (27686880).

Almost surely, 2^505455030 is an apocalyptic number.

505455030 is an abundant number, since it is smaller than the sum of its proper divisors (823515210).

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

505455030 is a wasteful number, since it uses less digits than its factorization.

505455030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63205 (or 63202 counting only the distinct ones).

The product of its (nonzero) digits is 7500, while the sum is 27.

The square root of 505455030 is about 22482.3270592704. The cubic root of 505455030 is about 796.5765321912.

It can be divided in two parts, 505 and 455030, that added together give a triangular number (455535 = T₉₅₄).

The spelling of 505455030 in words is "five hundred five million, four hundred fifty-five thousand, thirty".