20533152424 has 16 divisors (see below), whose sum is σ = 38521902420. Its totient is φ = 10260645120.

The previous prime is 20533152421. The next prime is 20533152461. The reversal of 20533152424 is 42425133502.

It can be written as a sum of positive squares in 2 ways, for example, as 19883820100 + 649332324 = 141010^2 + 25482^2 .

It is a super-2 number, since 2×20533152424² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20533152421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 726657 + ... + 754384.

Almost surely, 2^20533152424 is an apocalyptic number.

It is an amenable number.

20533152424 is a deficient number, since it is larger than the sum of its proper divisors (17988749996).

20533152424 is a wasteful number, since it uses less digits than its factorization.

20533152424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1482780 (or 1482776 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 20533152424 its reverse (42425133502), we get a palindrome (62958285926).

The spelling of 20533152424 in words is "twenty billion, five hundred thirty-three million, one hundred fifty-two thousand, four hundred twenty-four".