42054017 has 2 divisors, whose sum is σ = 42054018. Its totient is φ = 42054016.

The previous prime is 42053983. The next prime is 42054029. The reversal of 42054017 is 71045024.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 23658496 + 18395521 = 4864^2 + 4289^2 .

It is a cyclic number.

It is not a de Polignac number, because 42054017 - 2⁸ = 42053761 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 42053983 and 42054001.

It is not a weakly prime, because it can be changed into another prime (42054037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21027008 + 21027009.

It is an arithmetic number, because the mean of its divisors is an integer number (21027009).

Almost surely, 2^42054017 is an apocalyptic number.

It is an amenable number.

42054017 is a deficient number, since it is larger than the sum of its proper divisors (1).

42054017 is an equidigital number, since it uses as much as digits as its factorization.

42054017 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 42054017 is about 6484.9068613204. The cubic root of 42054017 is about 347.7516201179.

The spelling of 42054017 in words is "forty-two million, fifty-four thousand, seventeen".