57544913 has 2 divisors, whose sum is σ = 57544914. Its totient is φ = 57544912.

The previous prime is 57544867. The next prime is 57544931. The reversal of 57544913 is 31944575.

Together with next prime (57544931) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44462224 + 13082689 = 6668^2 + 3617^2 .

It is a cyclic number.

It is not a de Polignac number, because 57544913 - 2¹² = 57540817 is a prime.

It is a super-2 number, since 2×57544913² = 6622834024355138, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57544933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28772456 + 28772457.

It is an arithmetic number, because the mean of its divisors is an integer number (28772457).

Almost surely, 2^57544913 is an apocalyptic number.

It is an amenable number.

57544913 is a deficient number, since it is larger than the sum of its proper divisors (1).

57544913 is an equidigital number, since it uses as much as digits as its factorization.

57544913 is an evil number, because the sum of its binary digits is even.

The product of its digits is 75600, while the sum is 38.

The square root of 57544913 is about 7585.8363414985. The cubic root of 57544913 is about 386.0725990323.

The spelling of 57544913 in words is "fifty-seven million, five hundred forty-four thousand, nine hundred thirteen".