57152813 has 2 divisors, whose sum is σ = 57152814. Its totient is φ = 57152812.

The previous prime is 57152807. The next prime is 57152819. The reversal of 57152813 is 31825175.

It is a balanced prime because it is at equal distance from previous prime (57152807) and next prime (57152819).

It can be written as a sum of positive squares in only one way, i.e., 55681444 + 1471369 = 7462^2 + 1213^2 .

It is a cyclic number.

It is not a de Polignac number, because 57152813 - 2⁶ = 57152749 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 57152813.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57152819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28576406 + 28576407.

It is an arithmetic number, because the mean of its divisors is an integer number (28576407).

Almost surely, 2^57152813 is an apocalyptic number.

It is an amenable number.

57152813 is a deficient number, since it is larger than the sum of its proper divisors (1).

57152813 is an equidigital number, since it uses as much as digits as its factorization.

57152813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8400, while the sum is 32.

The square root of 57152813 is about 7559.9479495563. The cubic root of 57152813 is about 385.1937249594.

Adding to 57152813 its reverse (31825175), we get a palindrome (88977988).

The spelling of 57152813 in words is "fifty-seven million, one hundred fifty-two thousand, eight hundred thirteen".