561446427 has 4 divisors (see below), whose sum is σ = 748595240. Its totient is φ = 374297616.

The previous prime is 561446407. The next prime is 561446429. The reversal of 561446427 is 724644165.

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

It is not a de Polignac number, because 561446427 - 2¹² = 561442331 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (561446429) 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, 93574402 + ... + 93574407.

It is an arithmetic number, because the mean of its divisors is an integer number (187148810).

Almost surely, 2^561446427 is an apocalyptic number.

561446427 is a deficient number, since it is larger than the sum of its proper divisors (187148813).

561446427 is a wasteful number, since it uses less digits than its factorization.

561446427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187148812.

The product of its digits is 161280, while the sum is 39.

The square root of 561446427 is about 23694.8607719058. The cubic root of 561446427 is about 824.9661091679.

The spelling of 561446427 in words is "five hundred sixty-one million, four hundred forty-six thousand, four hundred twenty-seven".