561204850 has 24 divisors (see below), whose sum is σ = 1105245108. Its totient is φ = 211276800.

The previous prime is 561204823. The next prime is 561204877. The reversal of 561204850 is 58402165.

561204850 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (561204823) and next prime (561204877).

It can be written as a sum of positive squares in 6 ways, for example, as 212897281 + 348307569 = 14591^2 + 18663^2 .

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, 329271 + ... + 330970.

Almost surely, 2^561204850 is an apocalyptic number.

561204850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

561204850 is a deficient number, since it is larger than the sum of its proper divisors (544040258).

561204850 is a wasteful number, since it uses less digits than its factorization.

561204850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660270 (or 660265 counting only the distinct ones).

The product of its (nonzero) digits is 9600, while the sum is 31.

The square root of 561204850 is about 23689.7625568514. The cubic root of 561204850 is about 824.8477711166.

The spelling of 561204850 in words is "five hundred sixty-one million, two hundred four thousand, eight hundred fifty".