561223395 has 12 divisors (see below), whose sum is σ = 972787296. Its totient is φ = 299319120.

The previous prime is 561223393. The next prime is 561223459. The reversal of 561223395 is 593322165.

561223395 is a `hidden beast` number, since 5 + 612 + 2 + 3 + 39 + 5 = 666.

It is not a de Polignac number, because 561223395 - 2¹ = 561223393 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (561223393) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6235771 + ... + 6235860.

It is an arithmetic number, because the mean of its divisors is an integer number (81065608).

Almost surely, 2^561223395 is an apocalyptic number.

561223395 is a deficient number, since it is larger than the sum of its proper divisors (411563901).

561223395 is a wasteful number, since it uses less digits than its factorization.

561223395 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12471642 (or 12471639 counting only the distinct ones).

The product of its digits is 48600, while the sum is 36.

The square root of 561223395 is about 23690.1539674186. The cubic root of 561223395 is about 824.8568567078.

The spelling of 561223395 in words is "five hundred sixty-one million, two hundred twenty-three thousand, three hundred ninety-five".