561242050 has 24 divisors (see below), whose sum is σ = 1047339216. Its totient is φ = 223759440.

The previous prime is 561242023. The next prime is 561242051. The reversal of 561242050 is 50242165.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is not an unprimeable number, because it can be changed into a prime (561242051) by changing a digit.

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, 2932 + ... + 33631.

It is an arithmetic number, because the mean of its divisors is an integer number (43639134).

Almost surely, 2^561242050 is an apocalyptic number.

561242050 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

561242050 is a deficient number, since it is larger than the sum of its proper divisors (486097166).

561242050 is a wasteful number, since it uses less digits than its factorization.

561242050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36882 (or 36877 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

The square root of 561242050 is about 23690.5476931201. The cubic root of 561242050 is about 824.8659959883.

The spelling of 561242050 in words is "five hundred sixty-one million, two hundred forty-two thousand, fifty".