442125305251 has 32 divisors (see below), whose sum is σ = 535320023040. Its totient is φ = 357205939200.

The previous prime is 442125305231. The next prime is 442125305269. The reversal of 442125305251 is 152503521244.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-442125305251 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442125305231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1123131 + ... + 1464811.

It is an arithmetic number, because the mean of its divisors is an integer number (16728750720).

Almost surely, 2^442125305251 is an apocalyptic number.

442125305251 is a deficient number, since it is larger than the sum of its proper divisors (93194717789).

442125305251 is a wasteful number, since it uses less digits than its factorization.

442125305251 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341875.

The product of its (nonzero) digits is 48000, while the sum is 34.

Adding to 442125305251 its reverse (152503521244), we get a palindrome (594628826495).

The spelling of 442125305251 in words is "four hundred forty-two billion, one hundred twenty-five million, three hundred five thousand, two hundred fifty-one".