42520254430 has 16 divisors (see below), whose sum is σ = 79175646720. Its totient is φ = 16421615392.

The previous prime is 42520254397. The next prime is 42520254449. The reversal of 42520254430 is 3445202524.

It is a junction number, because it is equal to n+sod(n) for n = 42520254392 and 42520254401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73310494 + ... + 73311073.

It is an arithmetic number, because the mean of its divisors is an integer number (4948477920).

Almost surely, 2^42520254430 is an apocalyptic number.

42520254430 is a deficient number, since it is larger than the sum of its proper divisors (36655392290).

42520254430 is a wasteful number, since it uses less digits than its factorization.

42520254430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146621603.

The product of its (nonzero) digits is 38400, while the sum is 31.

Adding to 42520254430 its reverse (3445202524), we get a palindrome (45965456954).

The spelling of 42520254430 in words is "forty-two billion, five hundred twenty million, two hundred fifty-four thousand, four hundred thirty".