60057781 has 12 divisors (see below), whose sum is σ = 70089708. Its totient is φ = 51311232.

The previous prime is 60057779. The next prime is 60057797. The reversal of 60057781 is 18775006.

60057781 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 7263025 + 52794756 = 2695^2 + 7266^2 .

It is not a de Polignac number, because 60057781 - 2¹ = 60057779 is a prime.

It is a super-2 number, since 2×60057781² = 7213874117287922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (60057181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14695 + ... + 18331.

It is an arithmetic number, because the mean of its divisors is an integer number (5840809).

Almost surely, 2^60057781 is an apocalyptic number.

It is an amenable number.

60057781 is a deficient number, since it is larger than the sum of its proper divisors (10031927).

60057781 is a wasteful number, since it uses less digits than its factorization.

60057781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3988 (or 3981 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 34.

The square root of 60057781 is about 7749.6955424068. The cubic root of 60057781 is about 391.6123932241.

The spelling of 60057781 in words is "sixty million, fifty-seven thousand, seven hundred eighty-one".