42245123553 has 12 divisors (see below), whose sum is σ = 61036507428. Its totient is φ = 28156135680.

The previous prime is 42245123533. The next prime is 42245123567. The reversal of 42245123553 is 35532154224.

42245123553 is a `hidden beast` number, since 42 + 2 + 45 + 1 + 23 + 553 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25995757824 + 16249365729 = 161232^2 + 127473^2 .

It is not a de Polignac number, because 42245123553 - 2¹³ = 42245115361 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42245123533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 569800 + ... + 639657.

It is an arithmetic number, because the mean of its divisors is an integer number (5086375619).

Almost surely, 2^42245123553 is an apocalyptic number.

It is an amenable number.

42245123553 is a deficient number, since it is larger than the sum of its proper divisors (18791383875).

42245123553 is a wasteful number, since it uses less digits than its factorization.

42245123553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1213344 (or 1213341 counting only the distinct ones).

The product of its digits is 144000, while the sum is 36.

Adding to 42245123553 its reverse (35532154224), we get a palindrome (77777277777).

The spelling of 42245123553 in words is "forty-two billion, two hundred forty-five million, one hundred twenty-three thousand, five hundred fifty-three".