39620125 has 8 divisors (see below), whose sum is σ = 49446072. Its totient is φ = 31696000.

The previous prime is 39620123. The next prime is 39620137. The reversal of 39620125 is 52102693.

39620125 = 267² + 268² + ... + 516².

39620125 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 257049 + 39363076 = 507^2 + 6274^2 .

It is not a de Polignac number, because 39620125 - 2¹ = 39620123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 39620093 and 39620102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39620123) 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 7 ways as a sum of consecutive naturals, for example, 158356 + ... + 158605.

It is an arithmetic number, because the mean of its divisors is an integer number (6180759).

Almost surely, 2^39620125 is an apocalyptic number.

It is an amenable number.

39620125 is a deficient number, since it is larger than the sum of its proper divisors (9825947).

39620125 is an equidigital number, since it uses as much as digits as its factorization.

39620125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 316976 (or 316966 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 39620125 is about 6294.4519221295. The cubic root of 39620125 is about 340.9091154209.

The spelling of 39620125 in words is "thirty-nine million, six hundred twenty thousand, one hundred twenty-five".