2655545891 has 4 divisors (see below), whose sum is σ = 2771004432. Its totient is φ = 2540087352.

The previous prime is 2655545803. The next prime is 2655545903. The reversal of 2655545891 is 1985455562.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2655545891 - 2¹⁸ = 2655283747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2655545801) 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, 57729236 + ... + 57729281.

It is an arithmetic number, because the mean of its divisors is an integer number (692751108).

Almost surely, 2^2655545891 is an apocalyptic number.

2655545891 is a deficient number, since it is larger than the sum of its proper divisors (115458541).

2655545891 is a wasteful number, since it uses less digits than its factorization.

2655545891 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115458540.

The product of its digits is 2160000, while the sum is 50.

The square root of 2655545891 is about 51531.9890068295. The cubic root of 2655545891 is about 1384.7921840182.

The spelling of 2655545891 in words is "two billion, six hundred fifty-five million, five hundred forty-five thousand, eight hundred ninety-one".