20225510553 has 8 divisors (see below), whose sum is σ = 26968050400. Its totient is φ = 13483322208.

The previous prime is 20225510549. The next prime is 20225510579. The reversal of 20225510553 is 35501552202.

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

It is not a de Polignac number, because 20225510553 - 2² = 20225510549 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20225510553.

It is not an unprimeable number, because it can be changed into a prime (20225510533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 110118 + ... + 229296.

It is an arithmetic number, because the mean of its divisors is an integer number (3371006300).

Almost surely, 2^20225510553 is an apocalyptic number.

It is an amenable number.

20225510553 is a deficient number, since it is larger than the sum of its proper divisors (6742539847).

20225510553 is a wasteful number, since it uses less digits than its factorization.

20225510553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175751.

The product of its (nonzero) digits is 15000, while the sum is 30.

The spelling of 20225510553 in words is "twenty billion, two hundred twenty-five million, five hundred ten thousand, five hundred fifty-three".