561630395 has 8 divisors (see below), whose sum is σ = 674250480. Its totient is φ = 449108320.

The previous prime is 561630389. The next prime is 561630409. The reversal of 561630395 is 593036165.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 561630395 - 2⁶ = 561630331 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11240 + ... + 35349.

It is an arithmetic number, because the mean of its divisors is an integer number (84281310).

Almost surely, 2^561630395 is an apocalyptic number.

561630395 is a deficient number, since it is larger than the sum of its proper divisors (112620085).

561630395 is a wasteful number, since it uses less digits than its factorization.

561630395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49005.

The product of its (nonzero) digits is 72900, while the sum is 38.

The square root of 561630395 is about 23698.7424771864. The cubic root of 561630395 is about 825.0562043129.

The spelling of 561630395 in words is "five hundred sixty-one million, six hundred thirty thousand, three hundred ninety-five".