42052447 has 2 divisors, whose sum is σ = 42052448. Its totient is φ = 42052446.

The previous prime is 42052403. The next prime is 42052457. The reversal of 42052447 is 74425024.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 42052447 - 2⁷ = 42052319 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 (42052457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21026223 + 21026224.

It is an arithmetic number, because the mean of its divisors is an integer number (21026224).

Almost surely, 2^42052447 is an apocalyptic number.

42052447 is a deficient number, since it is larger than the sum of its proper divisors (1).

42052447 is an equidigital number, since it uses as much as digits as its factorization.

42052447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8960, while the sum is 28.

The square root of 42052447 is about 6484.7858098784. The cubic root of 42052447 is about 347.7472925342.

The spelling of 42052447 in words is "forty-two million, fifty-two thousand, four hundred forty-seven".