245520904 has 16 divisors (see below), whose sum is σ = 460749420. Its totient is φ = 122654400.

The previous prime is 245520901. The next prime is 245520923. The reversal of 245520904 is 409025542.

It can be written as a sum of positive squares in 2 ways, for example, as 234028804 + 11492100 = 15298^2 + 3390^2 .

It is not an unprimeable number, because it can be changed into a prime (245520901) 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 3 ways as a sum of consecutive naturals, for example, 2947 + ... + 22354.

Almost surely, 2^245520904 is an apocalyptic number.

It is an amenable number.

245520904 is a deficient number, since it is larger than the sum of its proper divisors (215228516).

245520904 is a wasteful number, since it uses less digits than its factorization.

245520904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26520 (or 26516 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 31.

The square root of 245520904 is about 15669.1066752384. The cubic root of 245520904 is about 626.1756253416.

The spelling of 245520904 in words is "two hundred forty-five million, five hundred twenty thousand, nine hundred four".