561757552 has 20 divisors (see below), whose sum is σ = 1089200376. Its totient is φ = 280673600.

The previous prime is 561757507. The next prime is 561757577. The reversal of 561757552 is 255757165.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 561757499 and 561757508.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 11118 + ... + 35314.

Almost surely, 2^561757552 is an apocalyptic number.

It is an amenable number.

561757552 is a deficient number, since it is larger than the sum of its proper divisors (527442824).

561757552 is a wasteful number, since it uses less digits than its factorization.

561757552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25656 (or 25650 counting only the distinct ones).

The product of its digits is 367500, while the sum is 43.

The square root of 561757552 is about 23701.4251048328. The cubic root of 561757552 is about 825.1184657552.

The spelling of 561757552 in words is "five hundred sixty-one million, seven hundred fifty-seven thousand, five hundred fifty-two".