32521425 has 48 divisors (see below), whose sum is σ = 59460480. Its totient is φ = 15600640.

The previous prime is 32521421. The next prime is 32521429. The reversal of 32521425 is 52412523.

It is an interprime number because it is at equal distance from previous prime (32521421) and next prime (32521429).

It is not a de Polignac number, because 32521425 - 2² = 32521421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32521395 and 32521404.

It is not an unprimeable number, because it can be changed into a prime (32521421) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 28771 + ... + 29879.

It is an arithmetic number, because the mean of its divisors is an integer number (1238760).

Almost surely, 2^32521425 is an apocalyptic number.

It is an amenable number.

32521425 is a deficient number, since it is larger than the sum of its proper divisors (26939055).

32521425 is a wasteful number, since it uses less digits than its factorization.

32521425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162 (or 1157 counting only the distinct ones).

The product of its digits is 2400, while the sum is 24.

The square root of 32521425 is about 5702.7559127145. The cubic root of 32521425 is about 319.1953252593.

Adding to 32521425 its reverse (52412523), we get a palindrome (84933948).

The spelling of 32521425 in words is "thirty-two million, five hundred twenty-one thousand, four hundred twenty-five".