2455811 has 2 divisors, whose sum is σ = 2455812. Its totient is φ = 2455810.

The previous prime is 2455781. The next prime is 2455823. The reversal of 2455811 is 1185542.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2455811 - 2¹⁰ = 2454787 is a prime.

It is a Chen prime.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (2455511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1227905 + 1227906.

It is an arithmetic number, because the mean of its divisors is an integer number (1227906).

2^2455811 is an apocalyptic number.

2455811 is a deficient number, since it is larger than the sum of its proper divisors (1).

2455811 is an equidigital number, since it uses as much as digits as its factorization.

2455811 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1600, while the sum is 26.

The square root of 2455811 is about 1567.1027407289. The cubic root of 2455811 is about 134.9164732512.

The spelling of 2455811 in words is "two million, four hundred fifty-five thousand, eight hundred eleven".