6345370553 has 2 divisors, whose sum is σ = 6345370554. Its totient is φ = 6345370552.

The previous prime is 6345370529. The next prime is 6345370573. The reversal of 6345370553 is 3550735436.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5765668624 + 579701929 = 75932^2 + 24077^2 .

It is a cyclic number.

It is not a de Polignac number, because 6345370553 - 2¹² = 6345366457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 6345370553.

It is not a weakly prime, because it can be changed into another prime (6345370523) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3172685276 + 3172685277.

It is an arithmetic number, because the mean of its divisors is an integer number (3172685277).

Almost surely, 2^6345370553 is an apocalyptic number.

It is an amenable number.

6345370553 is a deficient number, since it is larger than the sum of its proper divisors (1).

6345370553 is an equidigital number, since it uses as much as digits as its factorization.

6345370553 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567000, while the sum is 41.

The square root of 6345370553 is about 79657.8342223789. The cubic root of 6345370553 is about 1851.3377762916.

The spelling of 6345370553 in words is "six billion, three hundred forty-five million, three hundred seventy thousand, five hundred fifty-three".