42530225643 has 24 divisors (see below), whose sum is σ = 65690273376. Its totient is φ = 26421408000.

The previous prime is 42530225603. The next prime is 42530225701. The reversal of 42530225643 is 34652203524.

42530225643 is a `hidden beast` number, since 4 + 2 + 5 + 3 + 0 + 2 + 2 + 5 + 643 = 666.

It is not a de Polignac number, because 42530225643 - 2⁹ = 42530225131 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 42530225598 and 42530225607.

It is not an unprimeable number, because it can be changed into a prime (42530225603) 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, 1360663 + ... + 1391568.

It is an arithmetic number, because the mean of its divisors is an integer number (2737094724).

Almost surely, 2^42530225643 is an apocalyptic number.

42530225643 is a deficient number, since it is larger than the sum of its proper divisors (23160047733).

42530225643 is a wasteful number, since it uses less digits than its factorization.

42530225643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2752355 (or 2752352 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

The spelling of 42530225643 in words is "forty-two billion, five hundred thirty million, two hundred twenty-five thousand, six hundred forty-three".