2775601 has 4 divisors (see below), whose sum is σ = 2783232. Its totient is φ = 2767972.

The previous prime is 2775599. The next prime is 2775611. The reversal of 2775601 is 1065772.

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 not a de Polignac number, because 2775601 - 2¹ = 2775599 is a prime.

It is a super-2 number, since 2×2775601² = 15407921822402, which contains 22 as substring.

It is a Duffinian number.

2775601 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 2775601.

It is not an unprimeable number, because it can be changed into a prime (2775611) 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, 3241 + ... + 4006.

It is an arithmetic number, because the mean of its divisors is an integer number (695808).

2^2775601 is an apocalyptic number.

It is an amenable number.

2775601 is a deficient number, since it is larger than the sum of its proper divisors (7631).

2775601 is an equidigital number, since it uses as much as digits as its factorization.

2775601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7630.

The product of its (nonzero) digits is 2940, while the sum is 28.

The square root of 2775601 is about 1666.0135053474. The cubic root of 2775601 is about 140.5353819782.

The spelling of 2775601 in words is "two million, seven hundred seventy-five thousand, six hundred one".