442959053 has 4 divisors (see below), whose sum is σ = 443040540. Its totient is φ = 442877568.

The previous prime is 442959037. The next prime is 442959073. The reversal of 442959053 is 350959244.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 436057924 + 6901129 = 20882^2 + 2627^2 .

It is a cyclic number.

It is not a de Polignac number, because 442959053 - 2⁴ = 442959037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 442959053.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (442959073) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31958 + ... + 43671.

It is an arithmetic number, because the mean of its divisors is an integer number (110760135).

Almost surely, 2^442959053 is an apocalyptic number.

It is an amenable number.

442959053 is a deficient number, since it is larger than the sum of its proper divisors (81487).

442959053 is an equidigital number, since it uses as much as digits as its factorization.

442959053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81486.

The product of its (nonzero) digits is 194400, while the sum is 41.

The square root of 442959053 is about 21046.5924320304. The cubic root of 442959053 is about 762.2917051040.

The spelling of 442959053 in words is "four hundred forty-two million, nine hundred fifty-nine thousand, fifty-three".