57403207 has 2 divisors, whose sum is σ = 57403208. Its totient is φ = 57403206.

The previous prime is 57403189. The next prime is 57403211. The reversal of 57403207 is 70230475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57403207 - 2¹⁹ = 56878919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57403277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28701603 + 28701604.

It is an arithmetic number, because the mean of its divisors is an integer number (28701604).

Almost surely, 2^57403207 is an apocalyptic number.

57403207 is a deficient number, since it is larger than the sum of its proper divisors (1).

57403207 is an equidigital number, since it uses as much as digits as its factorization.

57403207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5880, while the sum is 28.

The square root of 57403207 is about 7576.4904144333. The cubic root of 57403207 is about 385.7554335944.

The spelling of 57403207 in words is "fifty-seven million, four hundred three thousand, two hundred seven".