505300442 has 4 divisors (see below), whose sum is σ = 757950666. Its totient is φ = 252650220.

The previous prime is 505300427. The next prime is 505300483. The reversal of 505300442 is 244003505.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 426463801 + 78836641 = 20651^2 + 8879^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 126325109 + ... + 126325112.

Almost surely, 2^505300442 is an apocalyptic number.

505300442 is a deficient number, since it is larger than the sum of its proper divisors (252650224).

505300442 is a wasteful number, since it uses less digits than its factorization.

505300442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252650223.

The product of its (nonzero) digits is 2400, while the sum is 23.

The square root of 505300442 is about 22478.8888070563. Note that the first 4 decimals coincide. The cubic root of 505300442 is about 796.4953157812.

Adding to 505300442 its reverse (244003505), we get a palindrome (749303947).

The spelling of 505300442 in words is "five hundred five million, three hundred thousand, four hundred forty-two".