561324604 has 24 divisors (see below), whose sum is σ = 1007427456. Its totient is φ = 273504000.

The previous prime is 561324583. The next prime is 561324607. The reversal of 561324604 is 406423165.

It is a super-2 number, since 2×561324604² = 630170622111513632, which contains 22 as substring.

It is a hoax number, since the sum of its digits (31) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561324607) 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, 215349 + ... + 217939.

It is an arithmetic number, because the mean of its divisors is an integer number (41976144).

Almost surely, 2^561324604 is an apocalyptic number.

It is an amenable number.

561324604 is a deficient number, since it is larger than the sum of its proper divisors (446102852).

561324604 is a wasteful number, since it uses less digits than its factorization.

561324604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3957 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

The square root of 561324604 is about 23692.2899695238. The cubic root of 561324604 is about 824.9064376296.

Adding to 561324604 its reverse (406423165), we get a palindrome (967747769).

The spelling of 561324604 in words is "five hundred sixty-one million, three hundred twenty-four thousand, six hundred four".