57451313 has 8 divisors (see below), whose sum is σ = 60946632. Its totient is φ = 53968896.

The previous prime is 57451253. The next prime is 57451321. The reversal of 57451313 is 31315475.

57451313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 48553024 + 8898289 = 6968^2 + 2983^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57451313 - 2⁸ = 57451057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (57451363) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6881 + ... + 12737.

It is an arithmetic number, because the mean of its divisors is an integer number (7618329).

Almost surely, 2^57451313 is an apocalyptic number.

It is an amenable number.

57451313 is a deficient number, since it is larger than the sum of its proper divisors (3495319).

57451313 is a wasteful number, since it uses less digits than its factorization.

57451313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6451.

The product of its digits is 6300, while the sum is 29.

The square root of 57451313 is about 7579.6644384827. The cubic root of 57451313 is about 385.8631625896.

Adding to 57451313 its reverse (31315475), we get a palindrome (88766788).

The spelling of 57451313 in words is "fifty-seven million, four hundred fifty-one thousand, three hundred thirteen".