442525001 has 2 divisors, whose sum is σ = 442525002. Its totient is φ = 442525000.

The previous prime is 442524983. The next prime is 442525003. The reversal of 442525001 is 100525244.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 422713600 + 19811401 = 20560^2 + 4451^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442525001 is a prime.

Together with 442525003, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (442525003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 221262500 + 221262501.

It is an arithmetic number, because the mean of its divisors is an integer number (221262501).

Almost surely, 2^442525001 is an apocalyptic number.

It is an amenable number.

442525001 is a deficient number, since it is larger than the sum of its proper divisors (1).

442525001 is an equidigital number, since it uses as much as digits as its factorization.

442525001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1600, while the sum is 23.

The square root of 442525001 is about 21036.2782116990. The cubic root of 442525001 is about 762.0426359033.

The spelling of 442525001 in words is "four hundred forty-two million, five hundred twenty-five thousand, one".