20425524453423 has 6 divisors (see below), whose sum is σ = 29503535321624. Its totient is φ = 13617016302276.

The previous prime is 20425524453331. The next prime is 20425524453457. The reversal of 20425524453423 is 32435442552402.

20425524453423 is a `hidden beast` number, since 2 + 0 + 4 + 2 + 5 + 52 + 44 + 534 + 23 = 666.

It is not a de Polignac number, because 20425524453423 - 2⁸ = 20425524453167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20425524453023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1134751358515 + ... + 1134751358532.

Almost surely, 2^{20425524453423} is an apocalyptic number.

20425524453423 is a deficient number, since it is larger than the sum of its proper divisors (9078010868201).

20425524453423 is a wasteful number, since it uses less digits than its factorization.

20425524453423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2269502717053 (or 2269502717050 counting only the distinct ones).

The product of its (nonzero) digits is 4608000, while the sum is 45.

The spelling of 20425524453423 in words is "twenty trillion, four hundred twenty-five billion, five hundred twenty-four million, four hundred fifty-three thousand, four hundred twenty-three".