42215550533 has 8 divisors (see below), whose sum is σ = 45731914200. Its totient is φ = 38968198464.

The previous prime is 42215550529. The next prime is 42215550551. The reversal of 42215550533 is 33505551224.

42215550533 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 3224309089 + 38991241444 = 56783^2 + 197462^2 .

It is not a de Polignac number, because 42215550533 - 2² = 42215550529 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42215550493 and 42215550502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42215550563) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9605348 + ... + 9609741.

It is an arithmetic number, because the mean of its divisors is an integer number (5716489275).

Almost surely, 2^42215550533 is an apocalyptic number.

It is an amenable number.

42215550533 is a deficient number, since it is larger than the sum of its proper divisors (3516363667).

42215550533 is an equidigital number, since it uses as much as digits as its factorization.

42215550533 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19215128 (or 19215102 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 35.

The spelling of 42215550533 in words is "forty-two billion, two hundred fifteen million, five hundred fifty thousand, five hundred thirty-three".