61010000057 has 2 divisors, whose sum is σ = 61010000058. Its totient is φ = 61010000056.

The previous prime is 61010000047. The next prime is 61010000063. The reversal of 61010000057 is 75000001016.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49058263081 + 11951736976 = 221491^2 + 109324^2 .

It is a cyclic number.

It is not a de Polignac number, because 61010000057 - 2⁴ = 61010000041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 61009999993 and 61010000038.

It is not a weakly prime, because it can be changed into another prime (61010000047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30505000028 + 30505000029.

It is an arithmetic number, because the mean of its divisors is an integer number (30505000029).

Almost surely, 2^61010000057 is an apocalyptic number.

It is an amenable number.

61010000057 is a deficient number, since it is larger than the sum of its proper divisors (1).

61010000057 is an equidigital number, since it uses as much as digits as its factorization.

61010000057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 210, while the sum is 20.

The spelling of 61010000057 in words is "sixty-one billion, ten million, fifty-seven", and thus it is an aban number and an uban number.