2553739 has 2 divisors, whose sum is σ = 2553740. Its totient is φ = 2553738.

The previous prime is 2553701. The next prime is 2553751. The reversal of 2553739 is 9373552.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2553739 - 2⁷ = 2553611 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (2553139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276869 + 1276870.

It is an arithmetic number, because the mean of its divisors is an integer number (1276870).

2^2553739 is an apocalyptic number.

2553739 is a deficient number, since it is larger than the sum of its proper divisors (1).

2553739 is an equidigital number, since it uses as much as digits as its factorization.

2553739 is an evil number, because the sum of its binary digits is even.

The product of its digits is 28350, while the sum is 34.

The square root of 2553739 is about 1598.0422397421. The cubic root of 2553739 is about 136.6864621997.

The spelling of 2553739 in words is "two million, five hundred fifty-three thousand, seven hundred thirty-nine".