39125025 has 45 divisors (see below), whose sum is σ = 72998211. Its totient is φ = 20716560.

The previous prime is 39125003. The next prime is 39125027. The reversal of 39125025 is 52052193.

The square root of 39125025 is 6255.

It is a perfect power (a square), and thus also a powerful number.

39125025 is a `hidden beast` number, since 391 + 250 + 25 = 666.

It can be written as a sum of positive squares in only one way, i.e., 14085009 + 25040016 = 3753^2 + 5004^2 .

It is a tau number, because it is divible by the number of its divisors (45).

It is not a de Polignac number, because 39125025 - 2²¹ = 37027873 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 39125025.

It is not an unprimeable number, because it can be changed into a prime (39125027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 281406 + ... + 281544.

Almost surely, 2^39125025 is an apocalyptic number.

39125025 is the 6255-th square number.

39125025 is the 3128-th centered octagonal number.

It is an amenable number.

39125025 is a deficient number, since it is larger than the sum of its proper divisors (33873186).

39125025 is an equidigital number, since it uses as much as digits as its factorization.

39125025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The cubic root of 39125025 is about 339.4831391292.

The spelling of 39125025 in words is "thirty-nine million, one hundred twenty-five thousand, twenty-five".