532500021 has 16 divisors (see below), whose sum is σ = 790459200. Its totient is φ = 354293424.

The previous prime is 532500011. The next prime is 532500037. The reversal of 532500021 is 120005235.

It is a happy number.

It is not a de Polignac number, because 532500021 - 2¹³ = 532491829 is a prime.

It is a super-3 number, since 3×532500021³ (a number of 27 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 532499967 and 532500003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (532500011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5631 + ... + 33116.

It is an arithmetic number, because the mean of its divisors is an integer number (49403700).

Almost surely, 2^532500021 is an apocalyptic number.

It is an amenable number.

532500021 is a deficient number, since it is larger than the sum of its proper divisors (257959179).

532500021 is a wasteful number, since it uses less digits than its factorization.

532500021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39265 (or 39259 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 18.

The square root of 532500021 is about 23075.9619734476. The cubic root of 532500021 is about 810.5376814146.

Adding to 532500021 its reverse (120005235), we get a palindrome (652505256).

The spelling of 532500021 in words is "five hundred thirty-two million, five hundred thousand, twenty-one".