20501425452435 has 16 divisors (see below), whose sum is σ = 32810655155616. Its totient is φ = 10931302097408.

The previous prime is 20501425452413. The next prime is 20501425452449. The reversal of 20501425452435 is 53425452410502.

It is a cyclic number.

It is not a de Polignac number, because 20501425452435 - 2¹⁶ = 20501425386899 is a prime.

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 15 ways as a sum of consecutive naturals, for example, 174406614 + ... + 174524123.

It is an arithmetic number, because the mean of its divisors is an integer number (2050665947226).

Almost surely, 2^{20501425452435} is an apocalyptic number.

20501425452435 is a deficient number, since it is larger than the sum of its proper divisors (12309229703181).

20501425452435 is a wasteful number, since it uses less digits than its factorization.

20501425452435 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 348934662.

The product of its (nonzero) digits is 960000, while the sum is 42.

Adding to 20501425452435 its reverse (53425452410502), we get a palindrome (73926877862937).

The spelling of 20501425452435 in words is "twenty trillion, five hundred one billion, four hundred twenty-five million, four hundred fifty-two thousand, four hundred thirty-five".