6425560201220 has 24 divisors (see below), whose sum is σ = 13495833258264. Its totient is φ = 2569813254656.

The previous prime is 6425560201139. The next prime is 6425560201259. The reversal of 6425560201220 is 221020655246.

It can be written as a sum of positive squares in 4 ways, for example, as 4030104430144 + 2395455771076 = 2007512^2 + 1547726^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25548347 + ... + 25798626.

It is an arithmetic number, because the mean of its divisors is an integer number (562326385761).

Almost surely, 2^{6425560201220} is an apocalyptic number.

It is an amenable number.

6425560201220 is an abundant number, since it is smaller than the sum of its proper divisors (7070273057044).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6425560201220 is a wasteful number, since it uses less digits than its factorization.

6425560201220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51353239 (or 51353237 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 6425560201220 its reverse (221020655246), we get a palindrome (6646580856466).

The spelling of 6425560201220 in words is "six trillion, four hundred twenty-five billion, five hundred sixty million, two hundred one thousand, two hundred twenty".