505225345 has 16 divisors (see below), whose sum is σ = 610346880. Its totient is φ = 401474304.

The previous prime is 505225339. The next prime is 505225349. The reversal of 505225345 is 543522505.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 505225345 - 2²³ = 496836737 is a prime.

It is not an unprimeable number, because it can be changed into a prime (505225349) 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, 739374 + ... + 740056.

It is an arithmetic number, because the mean of its divisors is an integer number (38146680).

Almost surely, 2^505225345 is an apocalyptic number.

It is an amenable number.

505225345 is a deficient number, since it is larger than the sum of its proper divisors (105121535).

505225345 is a wasteful number, since it uses less digits than its factorization.

505225345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1464.

The product of its (nonzero) digits is 30000, while the sum is 31.

The square root of 505225345 is about 22477.2183554816. The cubic root of 505225345 is about 796.4558558433.

The spelling of 505225345 in words is "five hundred five million, two hundred twenty-five thousand, three hundred forty-five".