20522454255 has 24 divisors (see below), whose sum is σ = 36000841968. Its totient is φ = 10813435776.

The previous prime is 20522454241. The next prime is 20522454259. The reversal of 20522454255 is 55245422502.

20522454255 is a `hidden beast` number, since 2 + 0 + 5 + 224 + 5 + 425 + 5 = 666.

It is not a de Polignac number, because 20522454255 - 2⁵ = 20522454223 is a prime.

It is a super-2 number, since 2×20522454255² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522454259) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2743582 + ... + 2751051.

It is an arithmetic number, because the mean of its divisors is an integer number (1500035082).

Almost surely, 2^20522454255 is an apocalyptic number.

20522454255 is a deficient number, since it is larger than the sum of its proper divisors (15478387713).

20522454255 is a wasteful number, since it uses less digits than its factorization.

20522454255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5494727 (or 5494724 counting only the distinct ones).

The product of its (nonzero) digits is 160000, while the sum is 36.

Adding to 20522454255 its reverse (55245422502), we get a palindrome (75767876757).

The spelling of 20522454255 in words is "twenty billion, five hundred twenty-two million, four hundred fifty-four thousand, two hundred fifty-five".