60055500781 has 2 divisors, whose sum is σ = 60055500782. Its totient is φ = 60055500780.

The previous prime is 60055500691. The next prime is 60055500797. The reversal of 60055500781 is 18700555006.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 58644371556 + 1411129225 = 242166^2 + 37565^2 .

It is a cyclic number.

It is not a de Polignac number, because 60055500781 - 2⁹ = 60055500269 is a prime.

It is a super-2 number, since 2×60055500781² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 60055500781.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (60055500481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30027750390 + 30027750391.

It is an arithmetic number, because the mean of its divisors is an integer number (30027750391).

Almost surely, 2^60055500781 is an apocalyptic number.

It is an amenable number.

60055500781 is a deficient number, since it is larger than the sum of its proper divisors (1).

60055500781 is an equidigital number, since it uses as much as digits as its factorization.

60055500781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 42000, while the sum is 37.

The spelling of 60055500781 in words is "sixty billion, fifty-five million, five hundred thousand, seven hundred eighty-one".