442231650025 has 81 divisors (see below), whose sum is σ = 613868650213. Its totient is φ = 315797574400.

The previous prime is 442231650017. The next prime is 442231650031. The reversal of 442231650025 is 520056132244.

The square root of 442231650025 is 665005.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 224989897561 + 217241752464 = 474331^2 + 466092^2 .

It is not a de Polignac number, because 442231650025 - 2³ = 442231650017 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 3913554369 + ... + 3913554481.

Almost surely, 2^442231650025 is an apocalyptic number.

442231650025 is the 665005-th square number.

442231650025 is the 332503-rd centered octagonal number.

It is an amenable number.

442231650025 is a deficient number, since it is larger than the sum of its proper divisors (171637000188).

442231650025 is a wasteful number, since it uses less digits than its factorization.

442231650025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 472 (or 236 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 34.

Adding to 442231650025 its reverse (520056132244), we get a palindrome (962287782269).

The spelling of 442231650025 in words is "four hundred forty-two billion, two hundred thirty-one million, six hundred fifty thousand, twenty-five".