2756565 has 32 divisors (see below), whose sum is σ = 5602560. Its totient is φ = 1259712.

The previous prime is 2756563. The next prime is 2756569. The reversal of 2756565 is 5656572.

It is not a de Polignac number, because 2756565 - 2¹ = 2756563 is a prime.

2756565 is a lucky number.

It is a zygodrome in base 4.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2756561) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 514 + ... + 2403.

It is an arithmetic number, because the mean of its divisors is an integer number (175080).

2^2756565 is an apocalyptic number.

It is an amenable number.

2756565 is an abundant number, since it is smaller than the sum of its proper divisors (2845995).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2756565 is a wasteful number, since it uses less digits than its factorization.

2756565 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2938 (or 2932 counting only the distinct ones).

The product of its digits is 63000, while the sum is 36.

The square root of 2756565 is about 1660.2906372078. The cubic root of 2756565 is about 140.2133651347.

It can be divided in two parts, 2756 and 565, that added together give a triangular number (3321 = T₈₁).

The spelling of 2756565 in words is "two million, seven hundred fifty-six thousand, five hundred sixty-five".