561025752687 has 16 divisors (see below), whose sum is σ = 831343946080. Its totient is φ = 373929561216.

The previous prime is 561025752649. The next prime is 561025752691. The reversal of 561025752687 is 786257520165.

561025752687 is a `hidden beast` number, since 5 + 6 + 1 + 0 + 2 + 575 + 2 + 68 + 7 = 666.

It is not a de Polignac number, because 561025752687 - 2²⁶ = 560958643823 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561025752607) 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, 2316028 + ... + 2546769.

It is an arithmetic number, because the mean of its divisors is an integer number (51958996630).

Almost surely, 2^561025752687 is an apocalyptic number.

561025752687 is a deficient number, since it is larger than the sum of its proper divisors (270318193393).

561025752687 is a wasteful number, since it uses less digits than its factorization.

561025752687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4867079 (or 4867073 counting only the distinct ones).

The product of its (nonzero) digits is 7056000, while the sum is 54.

The spelling of 561025752687 in words is "five hundred sixty-one billion, twenty-five million, seven hundred fifty-two thousand, six hundred eighty-seven".