523532561 has 8 divisors (see below), whose sum is σ = 563417064. Its totient is φ = 484657920.

The previous prime is 523532549. The next prime is 523532579. The reversal of 523532561 is 165235325.

It can be written as a sum of positive squares in 4 ways, for example, as 93219025 + 430313536 = 9655^2 + 20744^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-523532561 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (523532531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 251390 + ... + 253463.

It is an arithmetic number, because the mean of its divisors is an integer number (70427133).

Almost surely, 2^523532561 is an apocalyptic number.

It is an amenable number.

523532561 is a deficient number, since it is larger than the sum of its proper divisors (39884503).

523532561 is a wasteful number, since it uses less digits than its factorization.

523532561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504931.

The product of its digits is 27000, while the sum is 32.

The square root of 523532561 is about 22880.8339227398. The cubic root of 523532561 is about 805.9620000064.

Adding to 523532561 its reverse (165235325), we get a palindrome (688767886).

The spelling of 523532561 in words is "five hundred twenty-three million, five hundred thirty-two thousand, five hundred sixty-one".