32401625 has 8 divisors (see below), whose sum is σ = 40437384. Its totient is φ = 25921200.

The previous prime is 32401619. The next prime is 32401627. The reversal of 32401625 is 52610423.

It can be written as a sum of positive squares in 4 ways, for example, as 1008016 + 31393609 = 1004^2 + 5603^2 .

It is not a de Polignac number, because 32401625 - 2¹⁶ = 32336089 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 32401625.

It is not an unprimeable number, because it can be changed into a prime (32401627) 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, 129482 + ... + 129731.

It is an arithmetic number, because the mean of its divisors is an integer number (5054673).

Almost surely, 2^32401625 is an apocalyptic number.

It is an amenable number.

32401625 is a deficient number, since it is larger than the sum of its proper divisors (8035759).

32401625 is an equidigital number, since it uses as much as digits as its factorization.

32401625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259228 (or 259218 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 32401625 is about 5692.2425282133. The cubic root of 32401625 is about 318.8029003576.

The spelling of 32401625 in words is "thirty-two million, four hundred one thousand, six hundred twenty-five".