561025411 has 4 divisors (see below), whose sum is σ = 563260824. Its totient is φ = 558790000.

The previous prime is 561025327. The next prime is 561025433. The reversal of 561025411 is 114520165.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 561025411 - 2²³ = 552636803 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561025441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1117330 + ... + 1117831.

It is an arithmetic number, because the mean of its divisors is an integer number (140815206).

Almost surely, 2^561025411 is an apocalyptic number.

561025411 is a deficient number, since it is larger than the sum of its proper divisors (2235413).

561025411 is a wasteful number, since it uses less digits than its factorization.

561025411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2235412.

The product of its (nonzero) digits is 1200, while the sum is 25.

The square root of 561025411 is about 23685.9749852101. The cubic root of 561025411 is about 824.7598497828.

Adding to 561025411 its reverse (114520165), we get a palindrome (675545576).

The spelling of 561025411 in words is "five hundred sixty-one million, twenty-five thousand, four hundred eleven".