20524431452 has 18 divisors (see below), whose sum is σ = 41781878712. Its totient is φ = 8796184824.

The previous prime is 20524431451. The next prime is 20524431461. The reversal of 20524431452 is 25413442502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20524431451) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 52358048 + ... + 52358439.

It is an arithmetic number, because the mean of its divisors is an integer number (2321215484).

Almost surely, 2^20524431452 is an apocalyptic number.

It is an amenable number.

20524431452 is an abundant number, since it is smaller than the sum of its proper divisors (21257447260).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20524431452 is a wasteful number, since it uses less digits than its factorization.

20524431452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104716505 (or 104716496 counting only the distinct ones).

The product of its (nonzero) digits is 38400, while the sum is 32.

Adding to 20524431452 its reverse (25413442502), we get a palindrome (45937873954).

The spelling of 20524431452 in words is "twenty billion, five hundred twenty-four million, four hundred thirty-one thousand, four hundred fifty-two".