6948558553 has 2 divisors, whose sum is σ = 6948558554. Its totient is φ = 6948558552.

The previous prime is 6948558413. The next prime is 6948558557. The reversal of 6948558553 is 3558558496.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5811317824 + 1137240729 = 76232^2 + 33723^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6948558553 is a prime.

It is not a weakly prime, because it can be changed into another prime (6948558557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3474279276 + 3474279277.

It is an arithmetic number, because the mean of its divisors is an integer number (3474279277).

Almost surely, 2^6948558553 is an apocalyptic number.

It is an amenable number.

6948558553 is a deficient number, since it is larger than the sum of its proper divisors (1).

6948558553 is an equidigital number, since it uses as much as digits as its factorization.

6948558553 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25920000, while the sum is 58.

The square root of 6948558553 is about 83358.0143297572. The cubic root of 6948558553 is about 1908.2337548382.

The spelling of 6948558553 in words is "six billion, nine hundred forty-eight million, five hundred fifty-eight thousand, five hundred fifty-three".