2755657 has 4 divisors (see below), whose sum is σ = 2814336. Its totient is φ = 2696980.

The previous prime is 2755637. The next prime is 2755661. The reversal of 2755657 is 7565572.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2755657 is a prime.

It is a d-powerful number, because it can be written as 2¹² + 7³ + 5⁸ + 5⁸ + 6² + 5⁹ + 7⁵ .

It is a Duffinian number.

2755657 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2755637) 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, 29269 + ... + 29362.

It is an arithmetic number, because the mean of its divisors is an integer number (703584).

2^2755657 is an apocalyptic number.

It is an amenable number.

2755657 is a deficient number, since it is larger than the sum of its proper divisors (58679).

2755657 is an equidigital number, since it uses as much as digits as its factorization.

2755657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58678.

The product of its digits is 73500, while the sum is 37.

The square root of 2755657 is about 1660.0171685859. The cubic root of 2755657 is about 140.1979682287.

It can be divided in two parts, 275565 and 7, that added together give a palindrome (275572).

The spelling of 2755657 in words is "two million, seven hundred fifty-five thousand, six hundred fifty-seven".