2755391 has 4 divisors (see below), whose sum is σ = 2758800. Its totient is φ = 2751984.

The previous prime is 2755387. The next prime is 2755393. The reversal of 2755391 is 1935572.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2755391 - 2² = 2755387 is a prime.

It is an Ulam 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 (2755393) 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, 275 + ... + 2363.

It is an arithmetic number, because the mean of its divisors is an integer number (689700).

2^2755391 is an apocalyptic number.

2755391 is a deficient number, since it is larger than the sum of its proper divisors (3409).

2755391 is a wasteful number, since it uses less digits than its factorization.

2755391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3408.

The product of its digits is 9450, while the sum is 32.

The square root of 2755391 is about 1659.9370469991. The cubic root of 2755391 is about 140.1934570408.

The spelling of 2755391 in words is "two million, seven hundred fifty-five thousand, three hundred ninety-one".