57409223 has 2 divisors, whose sum is σ = 57409224. Its totient is φ = 57409222.

The previous prime is 57409217. The next prime is 57409243. The reversal of 57409223 is 32290475.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57409223 - 2¹⁶ = 57343687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 57409223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57409243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28704611 + 28704612.

It is an arithmetic number, because the mean of its divisors is an integer number (28704612).

Almost surely, 2^57409223 is an apocalyptic number.

57409223 is a deficient number, since it is larger than the sum of its proper divisors (1).

57409223 is an equidigital number, since it uses as much as digits as its factorization.

57409223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 57409223 is about 7576.8874216264. The cubic root of 57409223 is about 385.7689091691.

Adding to 57409223 its reverse (32290475), we get a palindrome (89699698).

The spelling of 57409223 in words is "fifty-seven million, four hundred nine thousand, two hundred twenty-three".