561201050 has 24 divisors (see below), whose sum is σ = 1050853500. Its totient is φ = 222970880.

The previous prime is 561201049. The next prime is 561201073. The reversal of 561201050 is 50102165.

It can be written as a sum of positive squares in 6 ways, for example, as 21242881 + 539958169 = 4609^2 + 23237^2 .

It is a super-2 number, since 2×561201050² = 629893237042205000, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30215 + ... + 45114.

Almost surely, 2^561201050 is an apocalyptic number.

561201050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

561201050 is a deficient number, since it is larger than the sum of its proper divisors (489652450).

561201050 is a wasteful number, since it uses less digits than its factorization.

561201050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75490 (or 75485 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 561201050 is about 23689.6823532947. The cubic root of 561201050 is about 824.8459093909.

The spelling of 561201050 in words is "five hundred sixty-one million, two hundred one thousand, fifty".