57004403 has 2 divisors, whose sum is σ = 57004404. Its totient is φ = 57004402.

The previous prime is 57004397. The next prime is 57004421. The reversal of 57004403 is 30440075.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57004403 - 2²⁰ = 55955827 is a prime.

It is a super-2 number, since 2×57004403² = 6499003922772818, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57004433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28502201 + 28502202.

It is an arithmetic number, because the mean of its divisors is an integer number (28502202).

Almost surely, 2^57004403 is an apocalyptic number.

57004403 is a deficient number, since it is larger than the sum of its proper divisors (1).

57004403 is an equidigital number, since it uses as much as digits as its factorization.

57004403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1680, while the sum is 23.

The square root of 57004403 is about 7550.1260254383. The cubic root of 57004403 is about 384.8600222003.

Adding to 57004403 its reverse (30440075), we get a palindrome (87444478).

The spelling of 57004403 in words is "fifty-seven million, four thousand, four hundred three".