42054407 has 2 divisors, whose sum is σ = 42054408. Its totient is φ = 42054406.

The previous prime is 42054361. The next prime is 42054421. The reversal of 42054407 is 70445024.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42054407 - 2¹² = 42050311 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42054487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21027203 + 21027204.

It is an arithmetic number, because the mean of its divisors is an integer number (21027204).

Almost surely, 2^42054407 is an apocalyptic number.

42054407 is a deficient number, since it is larger than the sum of its proper divisors (1).

42054407 is an equidigital number, since it uses as much as digits as its factorization.

42054407 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4480, while the sum is 26.

The square root of 42054407 is about 6484.9369310734. The cubic root of 42054407 is about 347.7526951061.

The spelling of 42054407 in words is "forty-two million, fifty-four thousand, four hundred seven".