42234521225 has 48 divisors (see below), whose sum is σ = 57194256000. Its totient is φ = 30751902720.

The previous prime is 42234521221. The next prime is 42234521233. The reversal of 42234521225 is 52212543224.

It is not a de Polignac number, because 42234521225 - 2² = 42234521221 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42234521191 and 42234521200.

It is not an unprimeable number, because it can be changed into a prime (42234521221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7305386 + ... + 7311164.

It is an arithmetic number, because the mean of its divisors is an integer number (1191547000).

Almost surely, 2^42234521225 is an apocalyptic number.

It is an amenable number.

42234521225 is a deficient number, since it is larger than the sum of its proper divisors (14959734775).

42234521225 is a wasteful number, since it uses less digits than its factorization.

42234521225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6114 (or 6109 counting only the distinct ones).

The product of its digits is 38400, while the sum is 32.

The spelling of 42234521225 in words is "forty-two billion, two hundred thirty-four million, five hundred twenty-one thousand, two hundred twenty-five".