20250484155 has 96 divisors (see below), whose sum is σ = 39772062720. Its totient is φ = 9446000640.

The previous prime is 20250484151. The next prime is 20250484187. The reversal of 20250484155 is 55148405202.

20250484155 is a `hidden beast` number, since 2 + 0 + 25 + 0 + 484 + 155 = 666.

It is not a de Polignac number, because 20250484155 - 2² = 20250484151 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20250484151) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1365259 + ... + 1380011.

It is an arithmetic number, because the mean of its divisors is an integer number (414292320).

Almost surely, 2^20250484155 is an apocalyptic number.

20250484155 is a deficient number, since it is larger than the sum of its proper divisors (19521578565).

20250484155 is a wasteful number, since it uses less digits than its factorization.

20250484155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14881 (or 14878 counting only the distinct ones).

The product of its (nonzero) digits is 64000, while the sum is 36.

Adding to 20250484155 its reverse (55148405202), we get a palindrome (75398889357).

It can be divided in two parts, 20250 and 484155, that added together give a palindrome (504405).

The spelling of 20250484155 in words is "twenty billion, two hundred fifty million, four hundred eighty-four thousand, one hundred fifty-five".