20255405501252 has 12 divisors (see below), whose sum is σ = 35494925748240. Its totient is φ = 10113998144616.

The previous prime is 20255405501237. The next prime is 20255405501341. The reversal of 20255405501252 is 25210550455202.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3426148178 + ... + 3426154089.

It is an arithmetic number, because the mean of its divisors is an integer number (2957910479020).

Almost surely, 2^{20255405501252} is an apocalyptic number.

It is an amenable number.

20255405501252 is a deficient number, since it is larger than the sum of its proper divisors (15239520246988).

20255405501252 is a wasteful number, since it uses less digits than its factorization.

20255405501252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6852303010 (or 6852303008 counting only the distinct ones).

The product of its (nonzero) digits is 200000, while the sum is 38.

Adding to 20255405501252 its reverse (25210550455202), we get a palindrome (45465955956454).

The spelling of 20255405501252 in words is "twenty trillion, two hundred fifty-five billion, four hundred five million, five hundred one thousand, two hundred fifty-two".