4055657 has 2 divisors, whose sum is σ = 4055658. Its totient is φ = 4055656.

The previous prime is 4055651. The next prime is 4055669. The reversal of 4055657 is 7565504.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3759721 + 295936 = 1939^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 4055657 - 2⁶ = 4055593 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (4055651) 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, 2027828 + 2027829.

It is an arithmetic number, because the mean of its divisors is an integer number (2027829).

Almost surely, 2^4055657 is an apocalyptic number.

It is an amenable number.

4055657 is a deficient number, since it is larger than the sum of its proper divisors (1).

4055657 is an equidigital number, since it uses as much as digits as its factorization.

4055657 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21000, while the sum is 32.

The square root of 4055657 is about 2013.8661822475. The cubic root of 4055657 is about 159.4729663994.

The spelling of 4055657 in words is "four million, fifty-five thousand, six hundred fifty-seven".