2554649291 has 2 divisors, whose sum is σ = 2554649292. Its totient is φ = 2554649290.

The previous prime is 2554649269. The next prime is 2554649303. The reversal of 2554649291 is 1929464552.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2554649291 is a prime.

It is not a weakly prime, because it can be changed into another prime (2554649191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1277324645 + 1277324646.

It is an arithmetic number, because the mean of its divisors is an integer number (1277324646).

Almost surely, 2^2554649291 is an apocalyptic number.

2554649291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2554649291 is an equidigital number, since it uses as much as digits as its factorization.

2554649291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 777600, while the sum is 47.

The square root of 2554649291 is about 50543.5385682483. The cubic root of 2554649291 is about 1367.0270109166.

The spelling of 2554649291 in words is "two billion, five hundred fifty-four million, six hundred forty-nine thousand, two hundred ninety-one".