561055504 has 10 divisors (see below), whose sum is σ = 1087045070. Its totient is φ = 280527744.

The previous prime is 561055499. The next prime is 561055519. The reversal of 561055504 is 405550165.

It can be written as a sum of positive squares in only one way, i.e., 559417104 + 1638400 = 23652^2 + 1280^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17532969 + ... + 17533000.

It is an arithmetic number, because the mean of its divisors is an integer number (108704507).

Almost surely, 2^561055504 is an apocalyptic number.

It is an amenable number.

561055504 is a deficient number, since it is larger than the sum of its proper divisors (525989566).

561055504 is a wasteful number, since it uses less digits than its factorization.

561055504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35065977 (or 35065971 counting only the distinct ones).

The product of its (nonzero) digits is 15000, while the sum is 31.

The square root of 561055504 is about 23686.6102260328. The cubic root of 561055504 is about 824.7745960278.

The spelling of 561055504 in words is "five hundred sixty-one million, fifty-five thousand, five hundred four".