6655525 has 6 divisors (see below), whose sum is σ = 8252882. Its totient is φ = 5324400.

The previous prime is 6655423. The next prime is 6655531. The reversal of 6655525 is 5255566.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1855044 + 4800481 = 1362^2 + 2191^2 .

It is a de Polignac number, because none of the positive numbers 2^k-6655525 is a prime.

It is a Duffinian number.

6655525 is a lucky number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 133086 + ... + 133135.

Almost surely, 2^6655525 is an apocalyptic number.

It is an amenable number.

6655525 is a deficient number, since it is larger than the sum of its proper divisors (1597357).

6655525 is a wasteful number, since it uses less digits than its factorization.

6655525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 266231 (or 266226 counting only the distinct ones).

The product of its digits is 45000, while the sum is 34.

The square root of 6655525 is about 2579.8304207835. The cubic root of 6655525 is about 188.1023002158.

The spelling of 6655525 in words is "six million, six hundred fifty-five thousand, five hundred twenty-five".