20255424331 has 8 divisors (see below), whose sum is σ = 20507364864. Its totient is φ = 20003672040.

The previous prime is 20255424311. The next prime is 20255424379. The reversal of 20255424331 is 13342455202.

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

It is a cyclic number.

It is not a de Polignac number, because 20255424331 - 2²⁷ = 20121206603 is a prime.

It is a super-2 number, since 2×20255424331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20255424293 and 20255424302.

It is not an unprimeable number, because it can be changed into a prime (20255424311) 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, 176010 + ... + 267376.

It is an arithmetic number, because the mean of its divisors is an integer number (2563420608).

Almost surely, 2^20255424331 is an apocalyptic number.

20255424331 is a deficient number, since it is larger than the sum of its proper divisors (251940533).

20255424331 is an equidigital number, since it uses as much as digits as its factorization.

20255424331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94121.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 20255424331 its reverse (13342455202), we get a palindrome (33597879533).

The spelling of 20255424331 in words is "twenty billion, two hundred fifty-five million, four hundred twenty-four thousand, three hundred thirty-one".