20506527025243 has 8 divisors (see below), whose sum is σ = 23436698726912. Its totient is φ = 17576522283816.

The previous prime is 20506527025219. The next prime is 20506527025267. The reversal of 20506527025243 is 34252072560502.

It is an interprime number because it is at equal distance from previous prime (20506527025219) and next prime (20506527025267).

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

It is a cyclic number.

It is not a de Polignac number, because 20506527025243 - 2¹⁷ = 20506526894171 is a prime.

It is a super-3 number, since 3×20506527025243³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20506527025243.

It is not an unprimeable number, because it can be changed into a prime (20506527025043) 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, 41476755 + ... + 41968252.

It is an arithmetic number, because the mean of its divisors is an integer number (2929587340864).

Almost surely, 2^{20506527025243} is an apocalyptic number.

20506527025243 is a deficient number, since it is larger than the sum of its proper divisors (2930171701669).

20506527025243 is an equidigital number, since it uses as much as digits as its factorization.

20506527025243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83480121.

The product of its (nonzero) digits is 1008000, while the sum is 43.

Adding to 20506527025243 its reverse (34252072560502), we get a palindrome (54758599585745).

The spelling of 20506527025243 in words is "twenty trillion, five hundred six billion, five hundred twenty-seven million, twenty-five thousand, two hundred forty-three".