2756401 has 2 divisors, whose sum is σ = 2756402. Its totient is φ = 2756400.

The previous prime is 2756381. The next prime is 2756417. The reversal of 2756401 is 1046572.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2637376 + 119025 = 1624^2 + 345^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2756401 is a prime.

It is a d-powerful number, because it can be written as 2¹⁹ + 7⁵ + 5⁹ + 6² + 4⁹ + 0 + 1 .

2756401 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2756441) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1378200 + 1378201.

It is an arithmetic number, because the mean of its divisors is an integer number (1378201).

2^2756401 is an apocalyptic number.

It is an amenable number.

2756401 is a deficient number, since it is larger than the sum of its proper divisors (1).

2756401 is an equidigital number, since it uses as much as digits as its factorization.

2756401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 2756401 is about 1660.2412475300. The cubic root of 2756401 is about 140.2105844459.

The spelling of 2756401 in words is "two million, seven hundred fifty-six thousand, four hundred one".