20520050254415 has 8 divisors (see below), whose sum is σ = 24626168419248. Its totient is φ = 16414634794240.

The previous prime is 20520050254393. The next prime is 20520050254427. The reversal of 20520050254415 is 51445205002502.

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

It is not a de Polignac number, because 20520050254415 - 2⁶ = 20520050254351 is a prime.

It is a Duffinian number.

It is a congruent 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, 175611917 + ... + 175728726.

It is an arithmetic number, because the mean of its divisors is an integer number (3078271052406).

Almost surely, 2^{20520050254415} is an apocalyptic number.

20520050254415 is a deficient number, since it is larger than the sum of its proper divisors (4106118164833).

20520050254415 is a wasteful number, since it uses less digits than its factorization.

20520050254415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 351352329.

The product of its (nonzero) digits is 80000, while the sum is 35.

Adding to 20520050254415 its reverse (51445205002502), we get a palindrome (71965255256917).

The spelling of 20520050254415 in words is "twenty trillion, five hundred twenty billion, fifty million, two hundred fifty-four thousand, four hundred fifteen".