442052203531 has 16 divisors (see below), whose sum is σ = 480780912640. Its totient is φ = 404895231360.

The previous prime is 442052203471. The next prime is 442052203577. The reversal of 442052203531 is 135302250244.

It is a cyclic number.

It is not a de Polignac number, because 442052203531 - 2¹³ = 442052195339 is a prime.

It is a super-2 number, since 2×442052203531² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 442052203493 and 442052203502.

It is not an unprimeable number, because it can be changed into a prime (442052293531) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 273091 + ... + 979123.

It is an arithmetic number, because the mean of its divisors is an integer number (30048807040).

Almost surely, 2^442052203531 is an apocalyptic number.

442052203531 is a deficient number, since it is larger than the sum of its proper divisors (38728709109).

442052203531 is a wasteful number, since it uses less digits than its factorization.

442052203531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 707146.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 442052203531 its reverse (135302250244), we get a palindrome (577354453775).

The spelling of 442052203531 in words is "four hundred forty-two billion, fifty-two million, two hundred three thousand, five hundred thirty-one".