505228550 has 24 divisors (see below), whose sum is σ = 940325976. Its totient is φ = 201962240.

The previous prime is 505228541. The next prime is 505228573. The reversal of 505228550 is 55822505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 130949 + ... + 134751.

It is an arithmetic number, because the mean of its divisors is an integer number (39180249).

Almost surely, 2^505228550 is an apocalyptic number.

505228550 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

505228550 is a deficient number, since it is larger than the sum of its proper divisors (435097426).

505228550 is a wasteful number, since it uses less digits than its factorization.

505228550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6472 (or 6467 counting only the distinct ones).

The product of its (nonzero) digits is 20000, while the sum is 32.

The square root of 505228550 is about 22477.2896497776. The cubic root of 505228550 is about 796.4575399998.

The spelling of 505228550 in words is "five hundred five million, two hundred twenty-eight thousand, five hundred fifty".