42225893 has 2 divisors, whose sum is σ = 42225894. Its totient is φ = 42225892.

The previous prime is 42225853. The next prime is 42225929. The reversal of 42225893 is 39852224.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 42211009 + 14884 = 6497^2 + 122^2 .

It is a cyclic number.

It is not a de Polignac number, because 42225893 - 2⁶ = 42225829 is a prime.

It is a zygodrome in base 3.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (42225823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21112946 + 21112947.

It is an arithmetic number, because the mean of its divisors is an integer number (21112947).

Almost surely, 2^42225893 is an apocalyptic number.

It is an amenable number.

42225893 is a deficient number, since it is larger than the sum of its proper divisors (1).

42225893 is an equidigital number, since it uses as much as digits as its factorization.

42225893 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 35.

The square root of 42225893 is about 6498.1453507905. The cubic root of 42225893 is about 348.2247331809.

The spelling of 42225893 in words is "forty-two million, two hundred twenty-five thousand, eight hundred ninety-three".