20024004505 has 8 divisors (see below), whose sum is σ = 24029569224. Its totient is φ = 16018694400.

The previous prime is 20024004491. The next prime is 20024004527. The reversal of 20024004505 is 50540042002.

It can be written as a sum of positive squares in 4 ways, for example, as 6211173721 + 13812830784 = 78811^2 + 117528^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20024004505 - 2¹¹ = 20024002457 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248865 + ... + 319345.

It is an arithmetic number, because the mean of its divisors is an integer number (3003696153).

Almost surely, 2^20024004505 is an apocalyptic number.

It is an amenable number.

20024004505 is a deficient number, since it is larger than the sum of its proper divisors (4005564719).

20024004505 is an equidigital number, since it uses as much as digits as its factorization.

20024004505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127307.

The product of its (nonzero) digits is 1600, while the sum is 22.

Adding to 20024004505 its reverse (50540042002), we get a palindrome (70564046507).

The spelling of 20024004505 in words is "twenty billion, twenty-four million, four thousand, five hundred five".