57150026449 has 2 divisors, whose sum is σ = 57150026450. Its totient is φ = 57150026448.

The previous prime is 57150026447. The next prime is 57150026509. The reversal of 57150026449 is 94462005175.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52044209424 + 5105817025 = 228132^2 + 71455^2 .

It is a cyclic number.

It is not a de Polignac number, because 57150026449 - 2¹ = 57150026447 is a prime.

It is a super-2 number, since 2×57150026449² (a number of 22 digits) contains 22 as substring.

Together with 57150026447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57150026441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28575013224 + 28575013225.

It is an arithmetic number, because the mean of its divisors is an integer number (28575013225).

Almost surely, 2^57150026449 is an apocalyptic number.

It is an amenable number.

57150026449 is a deficient number, since it is larger than the sum of its proper divisors (1).

57150026449 is an equidigital number, since it uses as much as digits as its factorization.

57150026449 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 302400, while the sum is 43.

The spelling of 57150026449 in words is "fifty-seven billion, one hundred fifty million, twenty-six thousand, four hundred forty-nine".