20224145250547 has 8 divisors (see below), whose sum is σ = 23391782459136. Its totient is φ = 17126126442312.

The previous prime is 20224145250469. The next prime is 20224145250571. The reversal of 20224145250547 is 74505254142202.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20224145250547 is a prime.

It is a super-2 number, since 2×20224145250547² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20224145253547) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17404599463 + ... + 17404600624.

It is an arithmetic number, because the mean of its divisors is an integer number (2923972807392).

Almost surely, 2^{20224145250547} is an apocalyptic number.

20224145250547 is a deficient number, since it is larger than the sum of its proper divisors (3167637208589).

20224145250547 is an equidigital number, since it uses as much as digits as its factorization.

20224145250547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34809200177.

The product of its (nonzero) digits is 896000, while the sum is 43.

Adding to 20224145250547 its reverse (74505254142202), we get a palindrome (94729399392749).

The spelling of 20224145250547 in words is "twenty trillion, two hundred twenty-four billion, one hundred forty-five million, two hundred fifty thousand, five hundred forty-seven".