6955581 has 4 divisors (see below), whose sum is σ = 9274112. Its totient is φ = 4637052.

The previous prime is 6955573. The next prime is 6955583. The reversal of 6955581 is 1855596.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 6955581 - 2³ = 6955573 is a prime.

It is a super-2 number, since 2×6955581² = 96760214095122, which contains 22 as substring.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6955583) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1159261 + ... + 1159266.

It is an arithmetic number, because the mean of its divisors is an integer number (2318528).

Almost surely, 2^6955581 is an apocalyptic number.

It is an amenable number.

6955581 is a deficient number, since it is larger than the sum of its proper divisors (2318531).

6955581 is a wasteful number, since it uses less digits than its factorization.

6955581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2318530.

The product of its digits is 54000, while the sum is 39.

The square root of 6955581 is about 2637.3435498622. The cubic root of 6955581 is about 190.8876380140.

The spelling of 6955581 in words is "six million, nine hundred fifty-five thousand, five hundred eighty-one".