2750261 has 2 divisors, whose sum is σ = 2750262. Its totient is φ = 2750260.

The previous prime is 2750249. The next prime is 2750263. The reversal of 2750261 is 1620572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2739025 + 11236 = 1655^2 + 106^2 .

It is a cyclic number.

It is not a de Polignac number, because 2750261 - 2⁶ = 2750197 is a prime.

Together with 2750263, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2750263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375130 + 1375131.

It is an arithmetic number, because the mean of its divisors is an integer number (1375131).

2^2750261 is an apocalyptic number.

It is an amenable number.

2750261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2750261 is an equidigital number, since it uses as much as digits as its factorization.

2750261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 2750261 is about 1658.3910877715. The cubic root of 2750261 is about 140.1063987093.

The spelling of 2750261 in words is "two million, seven hundred fifty thousand, two hundred sixty-one".