2553647 has 2 divisors, whose sum is σ = 2553648. Its totient is φ = 2553646.

The previous prime is 2553637. The next prime is 2553659. The reversal of 2553647 is 7463552.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2553647 - 2⁴ = 2553631 is a prime.

It is a super-2 number, since 2×2553647² = 13042226001218, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2553637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1276823 + 1276824.

It is an arithmetic number, because the mean of its divisors is an integer number (1276824).

2^2553647 is an apocalyptic number.

2553647 is a deficient number, since it is larger than the sum of its proper divisors (1).

2553647 is an equidigital number, since it uses as much as digits as its factorization.

2553647 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 25200, while the sum is 32.

The square root of 2553647 is about 1598.0134542613. The cubic root of 2553647 is about 136.6848207756.

The spelling of 2553647 in words is "two million, five hundred fifty-three thousand, six hundred forty-seven".