57485387 has 2 divisors, whose sum is σ = 57485388. Its totient is φ = 57485386.

The previous prime is 57485369. The next prime is 57485399. The reversal of 57485387 is 78358475.

It is a happy number.

57485387 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-57485387 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (57485327) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28742693 + 28742694.

It is an arithmetic number, because the mean of its divisors is an integer number (28742694).

Almost surely, 2^57485387 is an apocalyptic number.

57485387 is a deficient number, since it is larger than the sum of its proper divisors (1).

57485387 is an equidigital number, since it uses as much as digits as its factorization.

57485387 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 940800, while the sum is 47.

The square root of 57485387 is about 7581.9118301389. The cubic root of 57485387 is about 385.9394318239.

The spelling of 57485387 in words is "fifty-seven million, four hundred eighty-five thousand, three hundred eighty-seven".