57528643 has 2 divisors, whose sum is σ = 57528644. Its totient is φ = 57528642.

The previous prime is 57528641. The next prime is 57528649. The reversal of 57528643 is 34682575.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57528643 - 2¹ = 57528641 is a prime.

Together with 57528641, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 57528596 and 57528605.

It is not a weakly prime, because it can be changed into another prime (57528641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28764321 + 28764322.

It is an arithmetic number, because the mean of its divisors is an integer number (28764322).

Almost surely, 2^57528643 is an apocalyptic number.

57528643 is a deficient number, since it is larger than the sum of its proper divisors (1).

57528643 is an equidigital number, since it uses as much as digits as its factorization.

57528643 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 40.

The square root of 57528643 is about 7584.7638723958. The cubic root of 57528643 is about 386.0362101032.

The spelling of 57528643 in words is "fifty-seven million, five hundred twenty-eight thousand, six hundred forty-three".