561577005 has 48 divisors (see below), whose sum is σ = 1067414400. Its totient is φ = 270864000.

The previous prime is 561577001. The next prime is 561577013. The reversal of 561577005 is 500775165.

It is not a de Polignac number, because 561577005 - 2² = 561577001 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561577001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 95655 + ... + 101355.

It is an arithmetic number, because the mean of its divisors is an integer number (22237800).

Almost surely, 2^561577005 is an apocalyptic number.

561577005 is a gapful number since it is divisible by the number (55) formed by its first and last digit.

It is an amenable number.

561577005 is a deficient number, since it is larger than the sum of its proper divisors (505837395).

561577005 is a wasteful number, since it uses less digits than its factorization.

561577005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5922 (or 5919 counting only the distinct ones).

The product of its (nonzero) digits is 36750, while the sum is 36.

The square root of 561577005 is about 23697.6160193383. The cubic root of 561577005 is about 825.0300595108.

The spelling of 561577005 in words is "five hundred sixty-one million, five hundred seventy-seven thousand, five".