304223525 has 12 divisors (see below), whose sum is σ = 381129252. Its totient is φ = 240867840.

The previous prime is 304223489. The next prime is 304223537. The reversal of 304223525 is 525322403.

It can be written as a sum of positive squares in 6 ways, for example, as 16785409 + 287438116 = 4097^2 + 16954^2 .

It is not a de Polignac number, because 304223525 - 2¹⁸ = 303961381 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 304223494 and 304223503.

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, 60302 + ... + 65151.

It is an arithmetic number, because the mean of its divisors is an integer number (31760771).

Almost surely, 2^304223525 is an apocalyptic number.

It is an amenable number.

304223525 is a deficient number, since it is larger than the sum of its proper divisors (76905727).

304223525 is a wasteful number, since it uses less digits than its factorization.

304223525 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125560 (or 125555 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 26.

The square root of 304223525 is about 17442.0046152958. The cubic root of 304223525 is about 672.5598404484.

Adding to 304223525 its reverse (525322403), we get a palindrome (829545928).

The spelling of 304223525 in words is "three hundred four million, two hundred twenty-three thousand, five hundred twenty-five".