561506230 has 16 divisors (see below), whose sum is σ = 1025797680. Its totient is φ = 221249952.

The previous prime is 561506213. The next prime is 561506263. The reversal of 561506230 is 32605165.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 418365 + ... + 419704.

It is an arithmetic number, because the mean of its divisors is an integer number (64112355).

Almost surely, 2^561506230 is an apocalyptic number.

561506230 is a deficient number, since it is larger than the sum of its proper divisors (464291450).

561506230 is a wasteful number, since it uses less digits than its factorization.

561506230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 838143.

The product of its (nonzero) digits is 5400, while the sum is 28.

The square root of 561506230 is about 23696.1226786156. The cubic root of 561506230 is about 824.9953988112.

The spelling of 561506230 in words is "five hundred sixty-one million, five hundred six thousand, two hundred thirty".