57555601 has 2 divisors, whose sum is σ = 57555602. Its totient is φ = 57555600.

The previous prime is 57555599. The next prime is 57555607. The reversal of 57555601 is 10655575.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44422225 + 13133376 = 6665^2 + 3624^2 .

It is a cyclic number.

It is not a de Polignac number, because 57555601 - 2¹ = 57555599 is a prime.

Together with 57555599, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (57555607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28777800 + 28777801.

It is an arithmetic number, because the mean of its divisors is an integer number (28777801).

Almost surely, 2^57555601 is an apocalyptic number.

It is an amenable number.

57555601 is a deficient number, since it is larger than the sum of its proper divisors (1).

57555601 is an equidigital number, since it uses as much as digits as its factorization.

57555601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 26250, while the sum is 34.

The square root of 57555601 is about 7586.5407795648. The cubic root of 57555601 is about 386.0964997172.

The spelling of 57555601 in words is "fifty-seven million, five hundred fifty-five thousand, six hundred one".