20450224024500 has 48 divisors (see below), whose sum is σ = 59551052363712. Its totient is φ = 5453393072800.

The previous prime is 20450224024459. The next prime is 20450224024507. The reversal of 20450224024500 is 542042205402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20450224024507) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6816739842 + ... + 6816742841.

It is an arithmetic number, because the mean of its divisors is an integer number (1240646924244).

Almost surely, 2^{20450224024500} is an apocalyptic number.

20450224024500 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20450224024500 is an abundant number, since it is smaller than the sum of its proper divisors (39100828339212).

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

20450224024500 is a wasteful number, since it uses less digits than its factorization.

20450224024500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13633482705 (or 13633482693 counting only the distinct ones).

The product of its (nonzero) digits is 25600, while the sum is 30.

Adding to 20450224024500 its reverse (542042205402), we get a palindrome (20992266229902).

The spelling of 20450224024500 in words is "twenty trillion, four hundred fifty billion, two hundred twenty-four million, twenty-four thousand, five hundred".