561040024 has 16 divisors (see below), whose sum is σ = 1054528200. Its totient is φ = 279832512.

The previous prime is 561040021. The next prime is 561040091. The reversal of 561040024 is 420040165.

It is a junction number, because it is equal to n+sod(n) for n = 561039977 and 561040004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561040021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82462 + ... + 89005.

Almost surely, 2^561040024 is an apocalyptic number.

It is an amenable number.

561040024 is a deficient number, since it is larger than the sum of its proper divisors (493488176).

561040024 is a wasteful number, since it uses less digits than its factorization.

561040024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171882 (or 171878 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 561040024 is about 23686.2834568870. The cubic root of 561040024 is about 824.7670105465.

Adding to 561040024 its reverse (420040165), we get a palindrome (981080189).

The spelling of 561040024 in words is "five hundred sixty-one million, forty thousand, twenty-four".