2553917 has 2 divisors, whose sum is σ = 2553918. Its totient is φ = 2553916.

The previous prime is 2553907. The next prime is 2553937. The reversal of 2553917 is 7193552.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2247001 + 306916 = 1499^2 + 554^2 .

It is a cyclic number.

It is not a de Polignac number, because 2553917 - 2⁶ = 2553853 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2553907) 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, 1276958 + 1276959.

It is an arithmetic number, because the mean of its divisors is an integer number (1276959).

2^2553917 is an apocalyptic number.

It is an amenable number.

2553917 is a deficient number, since it is larger than the sum of its proper divisors (1).

2553917 is an equidigital number, since it uses as much as digits as its factorization.

2553917 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9450, while the sum is 32.

The square root of 2553917 is about 1598.0979319178. The cubic root of 2553917 is about 136.6896378864.

The spelling of 2553917 in words is "two million, five hundred fifty-three thousand, nine hundred seventeen".