505223525 has 12 divisors (see below), whose sum is σ = 641758404. Its totient is φ = 394320000.

The previous prime is 505223479. The next prime is 505223581. The reversal of 505223525 is 525322505.

It can be written as a sum of positive squares in 6 ways, for example, as 237344836 + 267878689 = 15406^2 + 16367^2 .

It is not a de Polignac number, because 505223525 - 2²⁰ = 504174949 is a prime.

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, 245426 + ... + 247475.

It is an arithmetic number, because the mean of its divisors is an integer number (53479867).

Almost surely, 2^505223525 is an apocalyptic number.

It is an amenable number.

505223525 is a deficient number, since it is larger than the sum of its proper divisors (136534879).

505223525 is a wasteful number, since it uses less digits than its factorization.

505223525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492952 (or 492947 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 29.

The square root of 505223525 is about 22477.1778700085. The cubic root of 505223525 is about 796.4548994704.

The spelling of 505223525 in words is "five hundred five million, two hundred twenty-three thousand, five hundred twenty-five".