20552445120255 has 16 divisors (see below), whose sum is σ = 34818259968864. Its totient is φ = 10316521472000.

The previous prime is 20552445120217. The next prime is 20552445120307. The reversal of 20552445120255 is 55202154425502.

It is not a de Polignac number, because 20552445120255 - 2⁷ = 20552445120127 is a prime.

It is a super-2 number, since 2×20552445120255² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40298911746 + ... + 40298912255.

It is an arithmetic number, because the mean of its divisors is an integer number (2176141248054).

Almost surely, 2^{20552445120255} is an apocalyptic number.

20552445120255 is a deficient number, since it is larger than the sum of its proper divisors (14265814848609).

20552445120255 is a wasteful number, since it uses less digits than its factorization.

20552445120255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80597824026.

The product of its (nonzero) digits is 800000, while the sum is 42.

Adding to 20552445120255 its reverse (55202154425502), we get a palindrome (75754599545757).

The spelling of 20552445120255 in words is "twenty trillion, five hundred fifty-two billion, four hundred forty-five million, one hundred twenty thousand, two hundred fifty-five".