63579355573 has 2 divisors, whose sum is σ = 63579355574. Its totient is φ = 63579355572.

The previous prime is 63579355531. The next prime is 63579355577. The reversal of 63579355573 is 37555397536.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47340186084 + 16239169489 = 217578^2 + 127433^2 .

It is a cyclic number.

It is not a de Polignac number, because 63579355573 - 2²⁵ = 63545801141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63579355577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31789677786 + 31789677787.

It is an arithmetic number, because the mean of its divisors is an integer number (31789677787).

Almost surely, 2^63579355573 is an apocalyptic number.

It is an amenable number.

63579355573 is a deficient number, since it is larger than the sum of its proper divisors (1).

63579355573 is an equidigital number, since it uses as much as digits as its factorization.

63579355573 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 44651250, while the sum is 58.

The spelling of 63579355573 in words is "sixty-three billion, five hundred seventy-nine million, three hundred fifty-five thousand, five hundred seventy-three".