30245731057 has 2 divisors, whose sum is σ = 30245731058. Its totient is φ = 30245731056.

The previous prime is 30245731051. The next prime is 30245731091. The reversal of 30245731057 is 75013754203.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30234602161 + 11128896 = 173881^2 + 3336^2 .

It is a cyclic number.

It is not a de Polignac number, because 30245731057 - 2³ = 30245731049 is a prime.

It is not a weakly prime, because it can be changed into another prime (30245731051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15122865528 + 15122865529.

It is an arithmetic number, because the mean of its divisors is an integer number (15122865529).

Almost surely, 2^30245731057 is an apocalyptic number.

It is an amenable number.

30245731057 is a deficient number, since it is larger than the sum of its proper divisors (1).

30245731057 is an equidigital number, since it uses as much as digits as its factorization.

30245731057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 88200, while the sum is 37.

The spelling of 30245731057 in words is "thirty billion, two hundred forty-five million, seven hundred thirty-one thousand, fifty-seven".