2775251 has 4 divisors (see below), whose sum is σ = 2787600. Its totient is φ = 2762904.

The previous prime is 2775247. The next prime is 2775257. The reversal of 2775251 is 1525772.

2775251 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2775251 - 2² = 2775247 is a prime.

It is a super-2 number, since 2×2775251² = 15404036226002, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2775257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5831 + ... + 6288.

It is an arithmetic number, because the mean of its divisors is an integer number (696900).

2^2775251 is an apocalyptic number.

2775251 is a deficient number, since it is larger than the sum of its proper divisors (12349).

2775251 is a wasteful number, since it uses less digits than its factorization.

2775251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12348.

The product of its digits is 4900, while the sum is 29.

The square root of 2775251 is about 1665.9084608705. The cubic root of 2775251 is about 140.5294746148.

The spelling of 2775251 in words is "two million, seven hundred seventy-five thousand, two hundred fifty-one".