20453424525 has 36 divisors (see below), whose sum is σ = 36773756448. Its totient is φ = 10866984480.

The previous prime is 20453424493. The next prime is 20453424539. The reversal of 20453424525 is 52542435402.

20453424525 is a `hidden beast` number, since 204 + 5 + 3 + 424 + 5 + 25 = 666.

It is not a de Polignac number, because 20453424525 - 2⁵ = 20453424493 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20453424525.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 113647 + ... + 231996.

Almost surely, 2^20453424525 is an apocalyptic number.

20453424525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20453424525 is a deficient number, since it is larger than the sum of its proper divisors (16320331923).

20453424525 is a wasteful number, since it uses less digits than its factorization.

20453424525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345922 (or 345914 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 36.

Adding to 20453424525 its reverse (52542435402), we get a palindrome (72995859927).

The spelling of 20453424525 in words is "twenty billion, four hundred fifty-three million, four hundred twenty-four thousand, five hundred twenty-five".