2155510547 has 2 divisors, whose sum is σ = 2155510548. Its totient is φ = 2155510546.

The previous prime is 2155510541. The next prime is 2155510559. The reversal of 2155510547 is 7450155512.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2155510547 is a prime.

It is not a weakly prime, because it can be changed into another prime (2155510541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1077755273 + 1077755274.

It is an arithmetic number, because the mean of its divisors is an integer number (1077755274).

Almost surely, 2^2155510547 is an apocalyptic number.

2155510547 is a deficient number, since it is larger than the sum of its proper divisors (1).

2155510547 is an equidigital number, since it uses as much as digits as its factorization.

2155510547 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 35000, while the sum is 35.

The square root of 2155510547 is about 46427.4762075218. The cubic root of 2155510547 is about 1291.7646156750.

The spelling of 2155510547 in words is "two billion, one hundred fifty-five million, five hundred ten thousand, five hundred forty-seven".