57255841 has 2 divisors, whose sum is σ = 57255842. Its totient is φ = 57255840.

The previous prime is 57255839. The next prime is 57255851. The reversal of 57255841 is 14855275.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55815841 + 1440000 = 7471^2 + 1200^2 .

It is a cyclic number.

It is not a de Polignac number, because 57255841 - 2¹ = 57255839 is a prime.

Together with 57255839, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 57255841.

It is not a weakly prime, because it can be changed into another prime (57255811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28627920 + 28627921.

It is an arithmetic number, because the mean of its divisors is an integer number (28627921).

Almost surely, 2^57255841 is an apocalyptic number.

It is an amenable number.

57255841 is a deficient number, since it is larger than the sum of its proper divisors (1).

57255841 is an equidigital number, since it uses as much as digits as its factorization.

57255841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56000, while the sum is 37.

The square root of 57255841 is about 7566.7589495107. The cubic root of 57255841 is about 385.4250458342.

The spelling of 57255841 in words is "fifty-seven million, two hundred fifty-five thousand, eight hundred forty-one".