561878033 has 8 divisors (see below), whose sum is σ = 608766048. Its totient is φ = 516527424.

The previous prime is 561878021. The next prime is 561878039. The reversal of 561878033 is 330878165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 561878033 - 2⁸ = 561877777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561878039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 383591 + ... + 385052.

It is an arithmetic number, because the mean of its divisors is an integer number (76095756).

Almost surely, 2^561878033 is an apocalyptic number.

It is an amenable number.

561878033 is a deficient number, since it is larger than the sum of its proper divisors (46888015).

561878033 is a wasteful number, since it uses less digits than its factorization.

561878033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 768703.

The product of its (nonzero) digits is 120960, while the sum is 41.

The square root of 561878033 is about 23703.9666089876. The cubic root of 561878033 is about 825.1774496777.

The spelling of 561878033 in words is "five hundred sixty-one million, eight hundred seventy-eight thousand, thirty-three".