57210641 has 2 divisors, whose sum is σ = 57210642. Its totient is φ = 57210640.

The previous prime is 57210631. The next prime is 57210689. The reversal of 57210641 is 14601275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51897616 + 5313025 = 7204^2 + 2305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57210641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57210641.

It is not a weakly prime, because it can be changed into another prime (57210631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28605320 + 28605321.

It is an arithmetic number, because the mean of its divisors is an integer number (28605321).

Almost surely, 2^57210641 is an apocalyptic number.

It is an amenable number.

57210641 is a deficient number, since it is larger than the sum of its proper divisors (1).

57210641 is an equidigital number, since it uses as much as digits as its factorization.

57210641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1680, while the sum is 26.

The square root of 57210641 is about 7563.7716120994. The cubic root of 57210641 is about 385.3235959320.

The spelling of 57210641 in words is "fifty-seven million, two hundred ten thousand, six hundred forty-one".