57243001 has 2 divisors, whose sum is σ = 57243002. Its totient is φ = 57243000.

The previous prime is 57242989. The next prime is 57243031. The reversal of 57243001 is 10034275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57153600 + 89401 = 7560^2 + 299^2 .

It is a cyclic number.

It is not a de Polignac number, because 57243001 - 2⁹ = 57242489 is a prime.

It is a super-2 number, since 2×57243001² = 6553522326972002, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57243031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28621500 + 28621501.

It is an arithmetic number, because the mean of its divisors is an integer number (28621501).

Almost surely, 2^57243001 is an apocalyptic number.

It is an amenable number.

57243001 is a deficient number, since it is larger than the sum of its proper divisors (1).

57243001 is an equidigital number, since it uses as much as digits as its factorization.

57243001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 22.

The square root of 57243001 is about 7565.9104541357. The cubic root of 57243001 is about 385.3962323107.

Adding to 57243001 its reverse (10034275), we get a palindrome (67277276).

The spelling of 57243001 in words is "fifty-seven million, two hundred forty-three thousand, one".