20514152224 has 12 divisors (see below), whose sum is σ = 40387237254. Its totient is φ = 10257076096.

The previous prime is 20514152221. The next prime is 20514152233. The reversal of 20514152224 is 42225141502.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 17143188624 + 3370963600 = 130932^2 + 58060^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20514152192 and 20514152201.

It is not an unprimeable number, because it can be changed into a prime (20514152221) 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 as a sum of consecutive naturals, namely, 320533597 + ... + 320533660.

Almost surely, 2^20514152224 is an apocalyptic number.

It is an amenable number.

20514152224 is a deficient number, since it is larger than the sum of its proper divisors (19873085030).

20514152224 is an equidigital number, since it uses as much as digits as its factorization.

20514152224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641067267 (or 641067259 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 20514152224 its reverse (42225141502), we get a palindrome (62739293726).

The spelling of 20514152224 in words is "twenty billion, five hundred fourteen million, one hundred fifty-two thousand, two hundred twenty-four".