6355504993 has 2 divisors, whose sum is σ = 6355504994. Its totient is φ = 6355504992.

The previous prime is 6355504949. The next prime is 6355504999. The reversal of 6355504993 is 3994055536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5240746449 + 1114758544 = 72393^2 + 33388^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6355504993 is a prime.

It is not a weakly prime, because it can be changed into another prime (6355504999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3177752496 + 3177752497.

It is an arithmetic number, because the mean of its divisors is an integer number (3177752497).

Almost surely, 2^6355504993 is an apocalyptic number.

It is an amenable number.

6355504993 is a deficient number, since it is larger than the sum of its proper divisors (1).

6355504993 is an equidigital number, since it uses as much as digits as its factorization.

6355504993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2187000, while the sum is 49.

The square root of 6355504993 is about 79721.4211677138. The cubic root of 6355504993 is about 1852.3228667423.

The spelling of 6355504993 in words is "six billion, three hundred fifty-five million, five hundred four thousand, nine hundred ninety-three".