220501402025 has 6 divisors (see below), whose sum is σ = 273421738542. Its totient is φ = 176401121600.

The previous prime is 220501402003. The next prime is 220501402049. The reversal of 220501402025 is 520204105022.

220501402025 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 7295401 + 220494106624 = 2701^2 + 469568^2 .

It is not a de Polignac number, because 220501402025 - 2²⁰ = 220500353449 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4410028016 + ... + 4410028065.

It is an arithmetic number, because the mean of its divisors is an integer number (45570289757).

Almost surely, 2^220501402025 is an apocalyptic number.

220501402025 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

220501402025 is a deficient number, since it is larger than the sum of its proper divisors (52920336517).

220501402025 is an equidigital number, since it uses as much as digits as its factorization.

220501402025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8820056091 (or 8820056086 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 23.

Adding to 220501402025 its reverse (520204105022), we get a palindrome (740705507047).

The spelling of 220501402025 in words is "two hundred twenty billion, five hundred one million, four hundred two thousand, twenty-five".