2455391 has 2 divisors, whose sum is σ = 2455392. Its totient is φ = 2455390.

The previous prime is 2455381. The next prime is 2455423. The reversal of 2455391 is 1935542.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2455391 - 2¹⁰ = 2454367 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2455381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1227695 + 1227696.

It is an arithmetic number, because the mean of its divisors is an integer number (1227696).

2^2455391 is an apocalyptic number.

2455391 is a deficient number, since it is larger than the sum of its proper divisors (1).

2455391 is an equidigital number, since it uses as much as digits as its factorization.

2455391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5400, while the sum is 29.

The square root of 2455391 is about 1566.9687297454. The cubic root of 2455391 is about 134.9087815424.

The spelling of 2455391 in words is "two million, four hundred fifty-five thousand, three hundred ninety-one".