32121025 has 6 divisors (see below), whose sum is σ = 39830102. Its totient is φ = 25696800.

The previous prime is 32120993. The next prime is 32121029. The reversal of 32121025 is 52012123.

It can be written as a sum of positive squares in 3 ways, for example, as 6395841 + 25725184 = 2529^2 + 5072^2 .

It is not a de Polignac number, because 32121025 - 2⁵ = 32120993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (32121029) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 642396 + ... + 642445.

Almost surely, 2^32121025 is an apocalyptic number.

It is an amenable number.

32121025 is a deficient number, since it is larger than the sum of its proper divisors (7709077).

32121025 is a wasteful number, since it uses less digits than its factorization.

32121025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284851 (or 1284846 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 32121025 is about 5667.5413540617. The cubic root of 32121025 is about 317.8799469034.

Adding to 32121025 its reverse (52012123), we get a palindrome (84133148).

The spelling of 32121025 in words is "thirty-two million, one hundred twenty-one thousand, twenty-five".