6655401 has 12 divisors (see below), whose sum is σ = 9643140. Its totient is φ = 4423200.

The previous prime is 6655393. The next prime is 6655403. The reversal of 6655401 is 1045566.

It is a happy number.

6655401 is a `hidden beast` number, since 6 + 655 + 4 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1010025 + 5645376 = 1005^2 + 2376^2 .

It is not a de Polignac number, because 6655401 - 2³ = 6655393 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6655403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2551 + ... + 4451.

It is an arithmetic number, because the mean of its divisors is an integer number (803595).

Almost surely, 2^6655401 is an apocalyptic number.

It is an amenable number.

6655401 is a deficient number, since it is larger than the sum of its proper divisors (2987739).

6655401 is a wasteful number, since it uses less digits than its factorization.

6655401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2296 (or 2293 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 6655401 is about 2579.8063880842. The cubic root of 6655401 is about 188.1011320219.

It can be divided in two parts, 6655 and 401, that added together give a square (7056 = 84²).

The spelling of 6655401 in words is "six million, six hundred fifty-five thousand, four hundred one".