220013455255025 has 18 divisors (see below), whose sum is σ = 279308806867350. Its totient is φ = 171917490581760.

The previous prime is 220013455255007. The next prime is 220013455255057. The reversal of 220013455255025 is 520552554310022.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3782429853409 + 216231025401616 = 1944847^2 + 14704796^2 .

It is a de Polignac number, because none of the positive numbers 2^k-220013455255025 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 2379764000 + ... + 2379856449.

It is an arithmetic number, because the mean of its divisors is an integer number (15517155937075).

Almost surely, 2^{220013455255025} is an apocalyptic number.

220013455255025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220013455255025 is a deficient number, since it is larger than the sum of its proper divisors (59295351612325).

220013455255025 is an equidigital number, since it uses as much as digits as its factorization.

220013455255025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759620545 (or 4759620497 counting only the distinct ones).

The product of its (nonzero) digits is 600000, while the sum is 41.

The spelling of 220013455255025 in words is "two hundred twenty trillion, thirteen billion, four hundred fifty-five million, two hundred fifty-five thousand, twenty-five".