561525 has 12 divisors (see below), whose sum is σ = 928512. Its totient is φ = 299440.

The previous prime is 561521. The next prime is 561529. The reversal of 561525 is 525165.

It is an interprime number because it is at equal distance from previous prime (561521) and next prime (561529).

It is not a de Polignac number, because 561525 - 2² = 561521 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 561495 and 561504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3669 + ... + 3818.

It is an arithmetic number, because the mean of its divisors is an integer number (77376).

2⁵⁶¹⁵²⁵ is an apocalyptic number.

It is an amenable number.

561525 is a deficient number, since it is larger than the sum of its proper divisors (366987).

561525 is a wasteful number, since it uses less digits than its factorization.

561525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7500 (or 7495 counting only the distinct ones).

The product of its digits is 1500, while the sum is 24.

The square root of 561525 is about 749.3497180890. The cubic root of 561525 is about 82.5004591343.

The spelling of 561525 in words is "five hundred sixty-one thousand, five hundred twenty-five".