20024450553 has 32 divisors (see below), whose sum is σ = 28034334720. Its totient is φ = 12701888640.

The previous prime is 20024450543. The next prime is 20024450561. The reversal of 20024450553 is 35505442002.

It is not a de Polignac number, because 20024450553 - 2¹² = 20024446457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20024450553.

It is not an unprimeable number, because it can be changed into a prime (20024450543) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 910776 + ... + 932502.

It is an arithmetic number, because the mean of its divisors is an integer number (876072960).

Almost surely, 2^20024450553 is an apocalyptic number.

It is an amenable number.

20024450553 is a deficient number, since it is larger than the sum of its proper divisors (8009884167).

20024450553 is a wasteful number, since it uses less digits than its factorization.

20024450553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21957.

The product of its (nonzero) digits is 24000, while the sum is 30.

Adding to 20024450553 its reverse (35505442002), we get a palindrome (55529892555).

The spelling of 20024450553 in words is "twenty billion, twenty-four million, four hundred fifty thousand, five hundred fifty-three".