57956449 has 2 divisors, whose sum is σ = 57956450. Its totient is φ = 57956448.

The previous prime is 57956447. The next prime is 57956461. The reversal of 57956449 is 94465975.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57866449 + 90000 = 7607^2 + 300^2 .

It is a cyclic number.

It is not a de Polignac number, because 57956449 - 2¹ = 57956447 is a prime.

Together with 57956447, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57956447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28978224 + 28978225.

It is an arithmetic number, because the mean of its divisors is an integer number (28978225).

Almost surely, 2^57956449 is an apocalyptic number.

It is an amenable number.

57956449 is a deficient number, since it is larger than the sum of its proper divisors (1).

57956449 is an equidigital number, since it uses as much as digits as its factorization.

57956449 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1360800, while the sum is 49.

The square root of 57956449 is about 7612.9133056932. The cubic root of 57956449 is about 386.9907544302.

The spelling of 57956449 in words is "fifty-seven million, nine hundred fifty-six thousand, four hundred forty-nine".