442255225 has 12 divisors (see below), whose sum is σ = 548871120. Its totient is φ = 353498000.

The previous prime is 442255213. The next prime is 442255271. The reversal of 442255225 is 522552244.

It is not a de Polignac number, because 442255225 - 2¹⁷ = 442124153 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 24450 + ... + 38500.

It is an arithmetic number, because the mean of its divisors is an integer number (45739260).

Almost surely, 2^442255225 is an apocalyptic number.

It is an amenable number.

442255225 is a deficient number, since it is larger than the sum of its proper divisors (106615895).

442255225 is a wasteful number, since it uses less digits than its factorization.

442255225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15320 (or 15315 counting only the distinct ones).

The product of its digits is 32000, while the sum is 31.

The square root of 442255225 is about 21029.8650732714. The cubic root of 442255225 is about 761.8877500371.

The spelling of 442255225 in words is "four hundred forty-two million, two hundred fifty-five thousand, two hundred twenty-five".