57241819 has 2 divisors, whose sum is σ = 57241820. Its totient is φ = 57241818.

The previous prime is 57241783. The next prime is 57241831. The reversal of 57241819 is 91814275.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57241819 - 2⁹ = 57241307 is a prime.

It is a super-2 number, since 2×57241819² = 6553251684857522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (57241879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28620909 + 28620910.

It is an arithmetic number, because the mean of its divisors is an integer number (28620910).

Almost surely, 2^57241819 is an apocalyptic number.

57241819 is a deficient number, since it is larger than the sum of its proper divisors (1).

57241819 is an equidigital number, since it uses as much as digits as its factorization.

57241819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 37.

The square root of 57241819 is about 7565.8323401989. The cubic root of 57241819 is about 385.3935796342.

The spelling of 57241819 in words is "fifty-seven million, two hundred forty-one thousand, eight hundred nineteen".