60556471993 has 2 divisors, whose sum is σ = 60556471994. Its totient is φ = 60556471992.

The previous prime is 60556471951. The next prime is 60556472017. The reversal of 60556471993 is 39917465506.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55850923584 + 4705548409 = 236328^2 + 68597^2 .

It is a cyclic number.

It is not a de Polignac number, because 60556471993 - 2²¹ = 60554374841 is a prime.

It is not a weakly prime, because it can be changed into another prime (60556471693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30278235996 + 30278235997.

It is an arithmetic number, because the mean of its divisors is an integer number (30278235997).

Almost surely, 2^60556471993 is an apocalyptic number.

It is an amenable number.

60556471993 is a deficient number, since it is larger than the sum of its proper divisors (1).

60556471993 is an equidigital number, since it uses as much as digits as its factorization.

60556471993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6123600, while the sum is 55.

The spelling of 60556471993 in words is "sixty billion, five hundred fifty-six million, four hundred seventy-one thousand, nine hundred ninety-three".