505250530 has 16 divisors (see below), whose sum is σ = 915476544. Its totient is φ = 200761200.

The previous prime is 505250521. The next prime is 505250533. The reversal of 505250530 is 35052505.

It is a junction number, because it is equal to n+sod(n) for n = 505250495 and 505250504.

It is not an unprimeable number, because it can be changed into a prime (505250533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165792 + ... + 168811.

It is an arithmetic number, because the mean of its divisors is an integer number (57217284).

Almost surely, 2^505250530 is an apocalyptic number.

505250530 is a deficient number, since it is larger than the sum of its proper divisors (410226014).

505250530 is a wasteful number, since it uses less digits than its factorization.

505250530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334761.

The product of its (nonzero) digits is 3750, while the sum is 25.

The square root of 505250530 is about 22477.7785824133. The cubic root of 505250530 is about 796.4690898108.

The spelling of 505250530 in words is "five hundred five million, two hundred fifty thousand, five hundred thirty".