42642224625 has 256 divisors, whose sum is σ = 97337769984. Its totient is φ = 16003584000.

The previous prime is 42642224593. The next prime is 42642224627. The reversal of 42642224625 is 52642224624.

It is not a de Polignac number, because 42642224625 - 2⁵ = 42642224593 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (42642224627) by changing a digit.

It is a polite number, since it can be written in 255 ways as a sum of consecutive naturals, for example, 17641417 + ... + 17643833.

It is an arithmetic number, because the mean of its divisors is an integer number (380225664).

Almost surely, 2^42642224625 is an apocalyptic number.

It is an amenable number.

42642224625 is an abundant number, since it is smaller than the sum of its proper divisors (54695545359).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

42642224625 is a wasteful number, since it uses less digits than its factorization.

42642224625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2513 (or 2503 counting only the distinct ones).

The product of its digits is 368640, while the sum is 39.

Subtracting 42642224625 from its reverse (52642224624), we obtain a palindrome (9999999999).

The spelling of 42642224625 in words is "forty-two billion, six hundred forty-two million, two hundred twenty-four thousand, six hundred twenty-five".