32520625 has 20 divisors (see below), whose sum is σ = 41352388. Its totient is φ = 25560000.

The previous prime is 32520611. The next prime is 32520637. The reversal of 32520625 is 52602523.

It can be written as a sum of positive squares in 10 ways, for example, as 32353344 + 167281 = 5688^2 + 409^2 .

It is not a de Polignac number, because 32520625 - 2¹³ = 32512433 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a plaindrome in base 14.

It is a self number, because there is not a number n which added to its sum of digits gives 32520625.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 37699 + ... + 38551.

Almost surely, 2^32520625 is an apocalyptic number.

It is an amenable number.

32520625 is a deficient number, since it is larger than the sum of its proper divisors (8831763).

32520625 is an frugal number, since it uses more digits than its factorization.

32520625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 934 (or 919 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

The square root of 32520625 is about 5702.6857707575. The cubic root of 32520625 is about 319.1927079247.

The spelling of 32520625 in words is "thirty-two million, five hundred twenty thousand, six hundred twenty-five".