42554857 has 2 divisors, whose sum is σ = 42554858. Its totient is φ = 42554856.

The previous prime is 42554833. The next prime is 42554879. The reversal of 42554857 is 75845524.

42554857 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 can be written as a sum of positive squares in only one way, i.e., 35473936 + 7080921 = 5956^2 + 2661^2 .

It is a cyclic number.

It is not a de Polignac number, because 42554857 - 2¹⁵ = 42522089 is a prime.

It is not a weakly prime, because it can be changed into another prime (42554257) 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, 21277428 + 21277429.

It is an arithmetic number, because the mean of its divisors is an integer number (21277429).

Almost surely, 2^42554857 is an apocalyptic number.

It is an amenable number.

42554857 is a deficient number, since it is larger than the sum of its proper divisors (1).

42554857 is an equidigital number, since it uses as much as digits as its factorization.

42554857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 224000, while the sum is 40.

The square root of 42554857 is about 6523.4083882584. The cubic root of 42554857 is about 349.1266853159.

The spelling of 42554857 in words is "forty-two million, five hundred fifty-four thousand, eight hundred fifty-seven".