2455540091 has 2 divisors, whose sum is σ = 2455540092. Its totient is φ = 2455540090.

The previous prime is 2455540067. The next prime is 2455540093. The reversal of 2455540091 is 1900455542.

It is a happy number.

2455540091 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2455540091 is a prime.

Together with 2455540093, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2455540093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1227770045 + 1227770046.

It is an arithmetic number, because the mean of its divisors is an integer number (1227770046).

Almost surely, 2^2455540091 is an apocalyptic number.

2455540091 is a deficient number, since it is larger than the sum of its proper divisors (1).

2455540091 is an equidigital number, since it uses as much as digits as its factorization.

2455540091 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 35.

The square root of 2455540091 is about 49553.4064520291. The cubic root of 2455540091 is about 1349.1151203465.

It can be divided in two parts, 24555 and 40091, that added together give a palindrome (64646).

The spelling of 2455540091 in words is "two billion, four hundred fifty-five million, five hundred forty thousand, ninety-one".