730000000057 has 2 divisors, whose sum is σ = 730000000058. Its totient is φ = 730000000056.

The previous prime is 730000000021. The next prime is 730000000087. The reversal of 730000000057 is 750000000037.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 427429595961 + 302570404096 = 653781^2 + 550064^2 .

It is a cyclic number.

It is not a de Polignac number, because 730000000057 - 2¹⁵ = 729999967289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 729999999965 and 730000000037.

It is not a weakly prime, because it can be changed into another prime (730000000087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 365000000028 + 365000000029.

It is an arithmetic number, because the mean of its divisors is an integer number (365000000029).

Almost surely, 2^730000000057 is an apocalyptic number.

It is an amenable number.

730000000057 is a deficient number, since it is larger than the sum of its proper divisors (1).

730000000057 is an equidigital number, since it uses as much as digits as its factorization.

730000000057 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 735, while the sum is 22.

The spelling of 730000000057 in words is "seven hundred thirty billion, fifty-seven", and thus it is an aban number.