42210145425 has 24 divisors (see below), whose sum is σ = 79757075776. Its totient is φ = 19296066240.

The previous prime is 42210145421. The next prime is 42210145477. The reversal of 42210145425 is 52454101224.

It is not a de Polignac number, because 42210145425 - 2² = 42210145421 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42210145392 and 42210145401.

It is not an unprimeable number, because it can be changed into a prime (42210145421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40199614 + ... + 40200663.

Almost surely, 2^42210145425 is an apocalyptic number.

It is an amenable number.

42210145425 is a deficient number, since it is larger than the sum of its proper divisors (37546930351).

42210145425 is a wasteful number, since it uses less digits than its factorization.

42210145425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80400297 (or 80400292 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 42210145425 its reverse (52454101224), we get a palindrome (94664246649).

The spelling of 42210145425 in words is "forty-two billion, two hundred ten million, one hundred forty-five thousand, four hundred twenty-five".