523532501 has 4 divisors (see below), whose sum is σ = 523627404. Its totient is φ = 523437600.

The previous prime is 523532453. The next prime is 523532507. The reversal of 523532501 is 105235325.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 403608100 + 119924401 = 20090^2 + 10951^2 .

It is a cyclic number.

It is not a de Polignac number, because 523532501 - 2¹⁸ = 523270357 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 (523532507) by changing a digit.

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, 38630 + ... + 50391.

It is an arithmetic number, because the mean of its divisors is an integer number (130906851).

Almost surely, 2^523532501 is an apocalyptic number.

It is an amenable number.

523532501 is a deficient number, since it is larger than the sum of its proper divisors (94903).

523532501 is an equidigital number, since it uses as much as digits as its factorization.

523532501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94902.

The product of its (nonzero) digits is 4500, while the sum is 26.

The square root of 523532501 is about 22880.8326115987. The cubic root of 523532501 is about 805.9619692170.

Adding to 523532501 its reverse (105235325), we get a palindrome (628767826).

The spelling of 523532501 in words is "five hundred twenty-three million, five hundred thirty-two thousand, five hundred one".