6973553551 has 2 divisors, whose sum is σ = 6973553552. Its totient is φ = 6973553550.

The previous prime is 6973553549. The next prime is 6973553627. The reversal of 6973553551 is 1553553796.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 6973553551 - 2¹ = 6973553549 is a prime.

Together with 6973553549, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 6973553495 and 6973553504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6973523551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3486776775 + 3486776776.

It is an arithmetic number, because the mean of its divisors is an integer number (3486776776).

Almost surely, 2^6973553551 is an apocalyptic number.

6973553551 is a deficient number, since it is larger than the sum of its proper divisors (1).

6973553551 is an equidigital number, since it uses as much as digits as its factorization.

6973553551 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2126250, while the sum is 49.

The square root of 6973553551 is about 83507.8053298014. The cubic root of 6973553551 is about 1910.5190836256.

The spelling of 6973553551 in words is "six billion, nine hundred seventy-three million, five hundred fifty-three thousand, five hundred fifty-one".