57061513 has 2 divisors, whose sum is σ = 57061514. Its totient is φ = 57061512.

The previous prime is 57061471. The next prime is 57061519. The reversal of 57061513 is 31516075.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 46744569 + 10316944 = 6837^2 + 3212^2 .

It is a cyclic number.

It is not a de Polignac number, because 57061513 - 2²¹ = 54964361 is a prime.

It is not a weakly prime, because it can be changed into another prime (57061519) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28530756 + 28530757.

It is an arithmetic number, because the mean of its divisors is an integer number (28530757).

Almost surely, 2^57061513 is an apocalyptic number.

It is an amenable number.

57061513 is a deficient number, since it is larger than the sum of its proper divisors (1).

57061513 is an equidigital number, since it uses as much as digits as its factorization.

57061513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3150, while the sum is 28.

The square root of 57061513 is about 7553.9071347217. The cubic root of 57061513 is about 384.9885036203.

Adding to 57061513 its reverse (31516075), we get a palindrome (88577588).

The spelling of 57061513 in words is "fifty-seven million, sixty-one thousand, five hundred thirteen".