57553091 has 2 divisors, whose sum is σ = 57553092. Its totient is φ = 57553090.

The previous prime is 57553063. The next prime is 57553099. The reversal of 57553091 is 19035575.

57553091 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 not a de Polignac number, because 57553091 - 2¹⁴ = 57536707 is a prime.

It is not a weakly prime, because it can be changed into another prime (57553099) 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, 28776545 + 28776546.

It is an arithmetic number, because the mean of its divisors is an integer number (28776546).

Almost surely, 2^57553091 is an apocalyptic number.

57553091 is a deficient number, since it is larger than the sum of its proper divisors (1).

57553091 is an equidigital number, since it uses as much as digits as its factorization.

57553091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23625, while the sum is 35.

The square root of 57553091 is about 7586.3753532237. The cubic root of 57553091 is about 386.0908870789.

The spelling of 57553091 in words is "fifty-seven million, five hundred fifty-three thousand, ninety-one".