561108471 has 16 divisors (see below), whose sum is σ = 932752128. Its totient is φ = 291484800.

The previous prime is 561108461. The next prime is 561108497. The reversal of 561108471 is 174801165.

It is a happy number.

It is not a de Polignac number, because 561108471 - 2⁶ = 561108407 is a prime.

It is a super-3 number, since 3×561108471³ (a number of 27 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561108461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1214290 + ... + 1214751.

It is an arithmetic number, because the mean of its divisors is an integer number (58297008).

Almost surely, 2^561108471 is an apocalyptic number.

561108471 is a deficient number, since it is larger than the sum of its proper divisors (371643657).

561108471 is a wasteful number, since it uses less digits than its factorization.

561108471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2429062.

The product of its (nonzero) digits is 6720, while the sum is 33.

The square root of 561108471 is about 23687.7282785834. The cubic root of 561108471 is about 824.8005497650.

The spelling of 561108471 in words is "five hundred sixty-one million, one hundred eight thousand, four hundred seventy-one".