6555401 has 4 divisors (see below), whose sum is σ = 6732612. Its totient is φ = 6378192.

The previous prime is 6555397. The next prime is 6555403. The reversal of 6555401 is 1045556.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 5067001 + 1488400 = 2251^2 + 1220^2 .

It is a cyclic number.

It is not a de Polignac number, because 6555401 - 2² = 6555397 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6555403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88550 + ... + 88623.

It is an arithmetic number, because the mean of its divisors is an integer number (1683153).

Almost surely, 2^6555401 is an apocalyptic number.

It is an amenable number.

6555401 is a deficient number, since it is larger than the sum of its proper divisors (177211).

6555401 is a wasteful number, since it uses less digits than its factorization.

6555401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177210.

The product of its (nonzero) digits is 3000, while the sum is 26.

The square root of 6555401 is about 2560.3517336491. The cubic root of 6555401 is about 187.1542761103.

The spelling of 6555401 in words is "six million, five hundred fifty-five thousand, four hundred one".