2750401 has 2 divisors, whose sum is σ = 2750402. Its totient is φ = 2750400.

The previous prime is 2750399. The next prime is 2750431. The reversal of 2750401 is 1040572.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2556801 + 193600 = 1599^2 + 440^2 .

It is a cyclic number.

It is not a de Polignac number, because 2750401 - 2¹ = 2750399 is a prime.

Together with 2750399, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2750431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1375200 + 1375201.

It is an arithmetic number, because the mean of its divisors is an integer number (1375201).

2^2750401 is an apocalyptic number.

It is an amenable number.

2750401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2750401 is an equidigital number, since it uses as much as digits as its factorization.

2750401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 280, while the sum is 19.

The square root of 2750401 is about 1658.4332968196. The cubic root of 2750401 is about 140.1087760065.

Adding to 2750401 its reverse (1040572), we get a palindrome (3790973).

The spelling of 2750401 in words is "two million, seven hundred fifty thousand, four hundred one".