32428625 has 8 divisors (see below), whose sum is σ = 40471080. Its totient is φ = 25942800.

The previous prime is 32428621. The next prime is 32428661. The reversal of 32428625 is 52682423.

It can be written as a sum of positive squares in 4 ways, for example, as 4592449 + 27836176 = 2143^2 + 5276^2 .

It is not a de Polignac number, because 32428625 - 2² = 32428621 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 32428591 and 32428600.

It is not an unprimeable number, because it can be changed into a prime (32428621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129590 + ... + 129839.

It is an arithmetic number, because the mean of its divisors is an integer number (5058885).

Almost surely, 2^32428625 is an apocalyptic number.

It is an amenable number.

32428625 is a deficient number, since it is larger than the sum of its proper divisors (8042455).

32428625 is an equidigital number, since it uses as much as digits as its factorization.

32428625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 259444 (or 259434 counting only the distinct ones).

The product of its digits is 23040, while the sum is 32.

The square root of 32428625 is about 5694.6136831220. The cubic root of 32428625 is about 318.8914276924.

The spelling of 32428625 in words is "thirty-two million, four hundred twenty-eight thousand, six hundred twenty-five".