561550176 has 72 divisors (see below), whose sum is σ = 1742091624. Its totient is φ = 170165760.

The previous prime is 561550153. The next prime is 561550181. The reversal of 561550176 is 671055165.

It is a tau number, because it is divible by the number of its divisors (72).

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 561550176.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85461 + ... + 91796.

It is an arithmetic number, because the mean of its divisors is an integer number (24195717).

Almost surely, 2^561550176 is an apocalyptic number.

It is an amenable number.

561550176 is an abundant number, since it is smaller than the sum of its proper divisors (1180541448).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561550176 is a wasteful number, since it uses less digits than its factorization.

561550176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177284 (or 177273 counting only the distinct ones).

The product of its (nonzero) digits is 31500, while the sum is 36.

The square root of 561550176 is about 23697.0499429781. The cubic root of 561550176 is about 825.0169208651.

The spelling of 561550176 in words is "five hundred sixty-one million, five hundred fifty thousand, one hundred seventy-six".