6685025 has 6 divisors (see below), whose sum is σ = 8289462. Its totient is φ = 5348000.

The previous prime is 6685013. The next prime is 6685027. The reversal of 6685025 is 5205866.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 85264 + 6599761 = 292^2 + 2569^2 .

It is not a de Polignac number, because 6685025 - 2¹⁰ = 6684001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6684982 and 6685000.

It is not an unprimeable number, because it can be changed into a prime (6685027) 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, 133676 + ... + 133725.

It is an arithmetic number, because the mean of its divisors is an integer number (1381577).

Almost surely, 2^6685025 is an apocalyptic number.

It is an amenable number.

6685025 is a deficient number, since it is larger than the sum of its proper divisors (1604437).

6685025 is a wasteful number, since it uses less digits than its factorization.

6685025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 267411 (or 267406 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 32.

The square root of 6685025 is about 2585.5415293512. The cubic root of 6685025 is about 188.3798059714.

The spelling of 6685025 in words is "six million, six hundred eighty-five thousand, twenty-five".